977281413 has 4 divisors (see below), whose sum is σ = 1303041888. Its totient is φ = 651520940.

The previous prime is 977281381. The next prime is 977281421. The reversal of 977281413 is 314182779.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 977281413 - 2⁵ = 977281381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977281423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162880233 + ... + 162880238.

It is an arithmetic number, because the mean of its divisors is an integer number (325760472).

Almost surely, 2^977281413 is an apocalyptic number.

It is an amenable number.

977281413 is a deficient number, since it is larger than the sum of its proper divisors (325760475).

977281413 is a wasteful number, since it uses less digits than its factorization.

977281413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325760474.

The product of its digits is 84672, while the sum is 42.

The square root of 977281413 is about 31261.5004918190. The cubic root of 977281413 is about 992.3690544568.

The spelling of 977281413 in words is "nine hundred seventy-seven million, two hundred eighty-one thousand, four hundred thirteen".