977577 has 8 divisors (see below), whose sum is σ = 1338816. Its totient is φ = 634032.

The previous prime is 977567. The next prime is 977591. The reversal of 977577 is 775779.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 977577 - 2⁶ = 977513 is a prime.

977577 is a lucky number.

It is a plaindrome in base 15.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (977507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4293 + ... + 4514.

It is an arithmetic number, because the mean of its divisors is an integer number (167352).

2⁹⁷⁷⁵⁷⁷ is an apocalyptic number.

It is an amenable number.

977577 is a deficient number, since it is larger than the sum of its proper divisors (361239).

977577 is a wasteful number, since it uses less digits than its factorization.

977577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8847.

The product of its digits is 108045, while the sum is 42.

The square root of 977577 is about 988.7249364712. The cubic root of 977577 is about 99.2469094500.

The spelling of 977577 in words is "nine hundred seventy-seven thousand, five hundred seventy-seven".