28957474 has 24 divisors (see below), whose sum is σ = 53758080. Its totient is φ = 11454768.

The previous prime is 28957471. The next prime is 28957531. The reversal of 28957474 is 47475982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28957471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3754 + ... + 8485.

It is an arithmetic number, because the mean of its divisors is an integer number (2239920).

Almost surely, 2^28957474 is an apocalyptic number.

28957474 is a deficient number, since it is larger than the sum of its proper divisors (24800606).

28957474 is a wasteful number, since it uses less digits than its factorization.

28957474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12274 (or 12261 counting only the distinct ones).

The product of its digits is 564480, while the sum is 46.

The square root of 28957474 is about 5381.2149185848. The cubic root of 28957474 is about 307.0814328429.

The spelling of 28957474 in words is "twenty-eight million, nine hundred fifty-seven thousand, four hundred seventy-four".