12577939 has 12 divisors (see below), whose sum is σ = 14140728. Its totient is φ = 11088800.

The previous prime is 12577937. The next prime is 12577949. The reversal of 12577939 is 93977521.

It is not a de Polignac number, because 12577939 - 2¹ = 12577937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12577895 and 12577904.

It is not an unprimeable number, because it can be changed into a prime (12577931) 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, 75234 + ... + 75400.

It is an arithmetic number, because the mean of its divisors is an integer number (1178394).

Almost surely, 2^12577939 is an apocalyptic number.

12577939 is a deficient number, since it is larger than the sum of its proper divisors (1562789).

12577939 is an equidigital number, since it uses as much as digits as its factorization.

12577939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 219 counting only the distinct ones).

The product of its digits is 119070, while the sum is 43.

The square root of 12577939 is about 3546.5390171264. The cubic root of 12577939 is about 232.5607903630.

The spelling of 12577939 in words is "twelve million, five hundred seventy-seven thousand, nine hundred thirty-nine".