76572009 has 12 divisors (see below), whose sum is σ = 112162752. Its totient is φ = 50328600.

The previous prime is 76571987. The next prime is 76572017. The reversal of 76572009 is 90027567.

It is not a de Polignac number, because 76572009 - 2¹⁶ = 76506473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76572059) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 59277 + ... + 60554.

It is an arithmetic number, because the mean of its divisors is an integer number (9346896).

Almost surely, 2^76572009 is an apocalyptic number.

It is an amenable number.

76572009 is a deficient number, since it is larger than the sum of its proper divisors (35590743).

76572009 is a wasteful number, since it uses less digits than its factorization.

76572009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119908 (or 119905 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 76572009 is about 8750.5433545580. The cubic root of 76572009 is about 424.6423916844.

The spelling of 76572009 in words is "seventy-six million, five hundred seventy-two thousand, nine".