977331 has 4 divisors (see below), whose sum is σ = 1303112. Its totient is φ = 651552.

The previous prime is 977323. The next prime is 977351. The reversal of 977331 is 133779.

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

It is not a de Polignac number, because 977331 - 2³ = 977323 is a prime.

It is a super-2 number, since 2×977331² = 1910351767122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (977351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162886 + ... + 162891.

It is an arithmetic number, because the mean of its divisors is an integer number (325778).

2⁹⁷⁷³³¹ is an apocalyptic number.

977331 is a deficient number, since it is larger than the sum of its proper divisors (325781).

977331 is a wasteful number, since it uses less digits than its factorization.

977331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325780.

The product of its digits is 3969, while the sum is 30.

The square root of 977331 is about 988.6005259962. The cubic root of 977331 is about 99.2385838354.

The spelling of 977331 in words is "nine hundred seventy-seven thousand, three hundred thirty-one".