977009 has 4 divisors (see below), whose sum is σ = 1065840. Its totient is φ = 888180.

The previous prime is 976991. The next prime is 977021. The reversal of 977009 is 900779.

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 a de Polignac number, because none of the positive numbers 2^k-977009 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 977009.

It is not an unprimeable number, because it can be changed into a prime (977069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44399 + ... + 44420.

It is an arithmetic number, because the mean of its divisors is an integer number (266460).

2⁹⁷⁷⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

977009 is a deficient number, since it is larger than the sum of its proper divisors (88831).

977009 is a wasteful number, since it uses less digits than its factorization.

977009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88830.

The product of its (nonzero) digits is 3969, while the sum is 32.

The square root of 977009 is about 988.4376561018. The cubic root of 977009 is about 99.2276839683.

The spelling of 977009 in words is "nine hundred seventy-seven thousand, nine".