977261 has 4 divisors (see below), whose sum is σ = 1000032. Its totient is φ = 954492.

The previous prime is 977257. The next prime is 977269. The reversal of 977261 is 162779.

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 not a de Polignac number, because 977261 - 2² = 977257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977269) by changing a digit.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11321 + ... + 11406.

It is an arithmetic number, because the mean of its divisors is an integer number (250008).

2⁹⁷⁷²⁶¹ is an apocalyptic number.

It is an amenable number.

977261 is a deficient number, since it is larger than the sum of its proper divisors (22771).

977261 is a wasteful number, since it uses less digits than its factorization.

977261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22770.

The product of its digits is 5292, while the sum is 32.

The square root of 977261 is about 988.5651217800. The cubic root of 977261 is about 99.2362145027.

The spelling of 977261 in words is "nine hundred seventy-seven thousand, two hundred sixty-one".