977013109 has 4 divisors (see below), whose sum is σ = 979591360. Its totient is φ = 974434860.

The previous prime is 977013101. The next prime is 977013127. The reversal of 977013109 is 901310779.

977013109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 901310779 = 73 ⋅12346723.

It is a cyclic number.

It is not a de Polignac number, because 977013109 - 2³ = 977013101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977013101) 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, 1288557 + ... + 1289314.

It is an arithmetic number, because the mean of its divisors is an integer number (244897840).

Almost surely, 2^977013109 is an apocalyptic number.

It is an amenable number.

977013109 is a deficient number, since it is larger than the sum of its proper divisors (2578251).

977013109 is a wasteful number, since it uses less digits than its factorization.

977013109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2578250.

The product of its (nonzero) digits is 11907, while the sum is 37.

The square root of 977013109 is about 31257.2089125053. The cubic root of 977013109 is about 992.2782307517.

The spelling of 977013109 in words is "nine hundred seventy-seven million, thirteen thousand, one hundred nine".