12777970 has 16 divisors (see below), whose sum is σ = 23042880. Its totient is φ = 5101744.

The previous prime is 12777967. The next prime is 12777979. The reversal of 12777970 is 7977721.

It is not an unprimeable number, because it can be changed into a prime (12777979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7629 + ... + 9151.

It is an arithmetic number, because the mean of its divisors is an integer number (1440180).

Almost surely, 2^12777970 is an apocalyptic number.

12777970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12777970 is a deficient number, since it is larger than the sum of its proper divisors (10264910).

12777970 is a wasteful number, since it uses less digits than its factorization.

12777970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2369.

The product of its (nonzero) digits is 43218, while the sum is 40.

The square root of 12777970 is about 3574.6286520421. The cubic root of 12777970 is about 233.7871417622.

The spelling of 12777970 in words is "twelve million, seven hundred seventy-seven thousand, nine hundred seventy".