28911463 has 8 divisors (see below), whose sum is σ = 34181280. Its totient is φ = 23926560.

The previous prime is 28911461. The next prime is 28911469. The reversal of 28911463 is 36411982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28911463 - 2¹ = 28911461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28911461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71008 + ... + 71413.

It is an arithmetic number, because the mean of its divisors is an integer number (4272660).

Almost surely, 2^28911463 is an apocalyptic number.

28911463 is a deficient number, since it is larger than the sum of its proper divisors (5269817).

28911463 is a wasteful number, since it uses less digits than its factorization.

28911463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142457.

The product of its digits is 10368, while the sum is 34.

The square root of 28911463 is about 5376.9380691989. The cubic root of 28911463 is about 306.9187044024.

The spelling of 28911463 in words is "twenty-eight million, nine hundred eleven thousand, four hundred sixty-three".