28615956 has 24 divisors (see below), whose sum is σ = 69674304. Its totient is φ = 9123840.

The previous prime is 28615931. The next prime is 28615963. The reversal of 28615956 is 65951682.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51565 + ... + 52116.

It is an arithmetic number, because the mean of its divisors is an integer number (2903096).

Almost surely, 2^28615956 is an apocalyptic number.

It is an amenable number.

28615956 is an abundant number, since it is smaller than the sum of its proper divisors (41058348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28615956 is a wasteful number, since it uses less digits than its factorization.

28615956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103711 (or 103709 counting only the distinct ones).

The product of its digits is 129600, while the sum is 42.

The square root of 28615956 is about 5349.3883762539. The cubic root of 28615956 is about 305.8694389402.

The spelling of 28615956 in words is "twenty-eight million, six hundred fifteen thousand, nine hundred fifty-six".