28957049 has 8 divisors (see below), whose sum is σ = 31880640. Its totient is φ = 26082000.

The previous prime is 28957039. The next prime is 28957057. The reversal of 28957049 is 94075982.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28957049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28957039) 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, 10877 + ... + 13274.

It is an arithmetic number, because the mean of its divisors is an integer number (3985080).

Almost surely, 2^28957049 is an apocalyptic number.

It is an amenable number.

28957049 is a deficient number, since it is larger than the sum of its proper divisors (2923591).

28957049 is a wasteful number, since it uses less digits than its factorization.

28957049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24271.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 28957049 is about 5381.1754292162. The cubic root of 28957049 is about 307.0799305221.

The spelling of 28957049 in words is "twenty-eight million, nine hundred fifty-seven thousand, forty-nine".