76020561 has 12 divisors (see below), whose sum is σ = 109933200. Its totient is φ = 50622360.

The previous prime is 76020551. The next prime is 76020563. The reversal of 76020561 is 16502067.

76020561 is a `hidden beast` number, since 7 + 602 + 0 + 56 + 1 = 666.

It is not a de Polignac number, because 76020561 - 2¹⁹ = 75496273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76020563) 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, 4390 + ... + 13088.

It is an arithmetic number, because the mean of its divisors is an integer number (9161100).

Almost surely, 2^76020561 is an apocalyptic number.

It is an amenable number.

76020561 is a deficient number, since it is larger than the sum of its proper divisors (33912639).

76020561 is a wasteful number, since it uses less digits than its factorization.

76020561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9676 (or 9673 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 76020561 is about 8718.9770615595. The cubic root of 76020561 is about 423.6205535640.

It can be divided in two parts, 760 and 20561, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 76020561 in words is "seventy-six million, twenty thousand, five hundred sixty-one".