28874992 has 10 divisors (see below), whose sum is σ = 55945328. Its totient is φ = 14437488.

The previous prime is 28874987. The next prime is 28874999. The reversal of 28874992 is 29947882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28874999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 902328 + ... + 902359.

Almost surely, 2^28874992 is an apocalyptic number.

It is an amenable number.

28874992 is a deficient number, since it is larger than the sum of its proper divisors (27070336).

28874992 is a wasteful number, since it uses less digits than its factorization.

28874992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804695 (or 1804689 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The square root of 28874992 is about 5373.5455706637. The cubic root of 28874992 is about 306.7895936504.

The spelling of 28874992 in words is "twenty-eight million, eight hundred seventy-four thousand, nine hundred ninety-two".