28792762 has 4 divisors (see below), whose sum is σ = 43189146. Its totient is φ = 14396380.

The previous prime is 28792759. The next prime is 28792763. The reversal of 28792762 is 26729782.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26729782 = 2 ⋅13364891.

It can be written as a sum of positive squares in only one way, i.e., 28740321 + 52441 = 5361^2 + 229^2 .

It is not an unprimeable number, because it can be changed into a prime (28792763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7198189 + ... + 7198192.

Almost surely, 2^28792762 is an apocalyptic number.

28792762 is a deficient number, since it is larger than the sum of its proper divisors (14396384).

28792762 is a wasteful number, since it uses less digits than its factorization.

28792762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14396383.

The product of its digits is 169344, while the sum is 43.

The square root of 28792762 is about 5365.8887427900. Note that the first 3 decimals coincide. The cubic root of 28792762 is about 306.4980923445.

The spelling of 28792762 in words is "twenty-eight million, seven hundred ninety-two thousand, seven hundred sixty-two".