977479 has 4 divisors (see below), whose sum is σ = 995976. Its totient is φ = 958984.

The previous prime is 977447. The next prime is 977507. The reversal of 977479 is 974779.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 977479 - 2⁵ = 977447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971479) 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, 9169 + ... + 9274.

It is an arithmetic number, because the mean of its divisors is an integer number (248994).

2⁹⁷⁷⁴⁷⁹ is an apocalyptic number.

977479 is a deficient number, since it is larger than the sum of its proper divisors (18497).

977479 is a wasteful number, since it uses less digits than its factorization.

977479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18496.

The product of its digits is 111132, while the sum is 43.

The square root of 977479 is about 988.6753764507. The cubic root of 977479 is about 99.2435929091.

The spelling of 977479 in words is "nine hundred seventy-seven thousand, four hundred seventy-nine".