76215528 has 24 divisors (see below), whose sum is σ = 206417250. Its totient is φ = 25405152.

The previous prime is 76215511. The next prime is 76215547. The reversal of 76215528 is 82551267.

It is a happy number.

76215528 is a `hidden beast` number, since 7 + 621 + 5 + 5 + 28 = 666.

It can be written as a sum of positive squares in only one way, i.e., 62062884 + 14152644 = 7878^2 + 3762^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 76215492 and 76215501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 529203 + ... + 529346.

Almost surely, 2^76215528 is an apocalyptic number.

It is an amenable number.

76215528 is an abundant number, since it is smaller than the sum of its proper divisors (130201722).

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

76215528 is a wasteful number, since it uses less digits than its factorization.

76215528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058561 (or 1058554 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 76215528 is about 8730.1505141664. The cubic root of 76215528 is about 423.9823921726.

It can be divided in two parts, 762 and 15528, that added together give a triangular number (16290 = T₁₈₀).

The spelling of 76215528 in words is "seventy-six million, two hundred fifteen thousand, five hundred twenty-eight".