28971462 has 32 divisors (see below), whose sum is σ = 63433440. Its totient is φ = 8766720.

The previous prime is 28971413. The next prime is 28971463. The reversal of 28971462 is 26417982.

It is a super-2 number, since 2×28971462² = 1678691220834888, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 28971462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28971463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1714 + ... + 7802.

It is an arithmetic number, because the mean of its divisors is an integer number (1982295).

Almost surely, 2^28971462 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28971462, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31716720).

28971462 is an abundant number, since it is smaller than the sum of its proper divisors (34461978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28971462 is a wasteful number, since it uses less digits than its factorization.

28971462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6168.

The product of its digits is 48384, while the sum is 39.

The square root of 28971462 is about 5382.5144681645. The cubic root of 28971462 is about 307.1308704380.

The spelling of 28971462 in words is "twenty-eight million, nine hundred seventy-one thousand, four hundred sixty-two".