28974057 has 16 divisors (see below), whose sum is σ = 45576192. Its totient is φ = 16022160.

The previous prime is 28974041. The next prime is 28974067. The reversal of 28974057 is 75047982.

It is not a de Polignac number, because 28974057 - 2⁴ = 28974041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28974007) 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, 21603 + ... + 22904.

It is an arithmetic number, because the mean of its divisors is an integer number (2848512).

Almost surely, 2^28974057 is an apocalyptic number.

It is an amenable number.

28974057 is a deficient number, since it is larger than the sum of its proper divisors (16602135).

28974057 is a wasteful number, since it uses less digits than its factorization.

28974057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44548.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 28974057 is about 5382.7555211063. The cubic root of 28974057 is about 307.1400401606.

The spelling of 28974057 in words is "twenty-eight million, nine hundred seventy-four thousand, fifty-seven".