28737463 has 16 divisors (see below), whose sum is σ = 31959360. Its totient is φ = 25715200.

The previous prime is 28737451. The next prime is 28737479. The reversal of 28737463 is 36473782.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 28737463 - 2⁵ = 28737431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28737763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34593 + ... + 35413.

It is an arithmetic number, because the mean of its divisors is an integer number (1997460).

Almost surely, 2^28737463 is an apocalyptic number.

28737463 is a deficient number, since it is larger than the sum of its proper divisors (3221897).

28737463 is a wasteful number, since it uses less digits than its factorization.

28737463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938.

The product of its digits is 169344, while the sum is 40.

The square root of 28737463 is about 5360.7334386257. The cubic root of 28737463 is about 306.3017478570.

The spelling of 28737463 in words is "twenty-eight million, seven hundred thirty-seven thousand, four hundred sixty-three".