13244977 has 2 divisors, whose sum is σ = 13244978. Its totient is φ = 13244976.

The previous prime is 13244971. The next prime is 13244981. The reversal of 13244977 is 77944231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8767521 + 4477456 = 2961^2 + 2116^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13244977 is a prime.

It is not a weakly prime, because it can be changed into another prime (13244971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6622488 + 6622489.

It is an arithmetic number, because the mean of its divisors is an integer number (6622489).

Almost surely, 2^13244977 is an apocalyptic number.

It is an amenable number.

13244977 is a deficient number, since it is larger than the sum of its proper divisors (1).

13244977 is an equidigital number, since it uses as much as digits as its factorization.

13244977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 37.

The square root of 13244977 is about 3639.3649171250. The cubic root of 13244977 is about 236.6012689325.

The spelling of 13244977 in words is "thirteen million, two hundred forty-four thousand, nine hundred seventy-seven".