28957914 has 12 divisors (see below), whose sum is σ = 62742186. Its totient is φ = 9652632.

The previous prime is 28957909. The next prime is 28957927. The reversal of 28957914 is 41975982.

It can be written as a sum of positive squares in only one way, i.e., 17363889 + 11594025 = 4167^2 + 3405^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28957914.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 804369 + ... + 804404.

Almost surely, 2^28957914 is an apocalyptic number.

28957914 is an abundant number, since it is smaller than the sum of its proper divisors (33784272).

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

28957914 is a wasteful number, since it uses less digits than its factorization.

28957914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608781 (or 1608778 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 28957914 is about 5381.2558013906. The cubic root of 28957914 is about 307.0829881713.

The spelling of 28957914 in words is "twenty-eight million, nine hundred fifty-seven thousand, nine hundred fourteen".