76422565 has 16 divisors (see below), whose sum is σ = 99474480. Its totient is φ = 56135680.

The previous prime is 76422557. The next prime is 76422581. The reversal of 76422565 is 56522467.

It is a Cunningham number, because it is equal to 8742²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 1790244 + 74632321 = 1338^2 + 8639^2 .

It is not a de Polignac number, because 76422565 - 2³ = 76422557 is a prime.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 7480 + ... + 14449.

It is an arithmetic number, because the mean of its divisors is an integer number (6217155).

Almost surely, 2^76422565 is an apocalyptic number.

It is an amenable number.

76422565 is a deficient number, since it is larger than the sum of its proper divisors (23051915).

76422565 is a wasteful number, since it uses less digits than its factorization.

76422565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21992.

The product of its digits is 100800, while the sum is 37.

The square root of 76422565 is about 8742.0000571951. Note that the first 4 decimals coincide. The cubic root of 76422565 is about 424.3659565226.

The spelling of 76422565 in words is "seventy-six million, four hundred twenty-two thousand, five hundred sixty-five".