977973 has 8 divisors (see below), whose sum is σ = 1335936. Its totient is φ = 636000.

The previous prime is 977971. The next prime is 978001. The reversal of 977973 is 379779.

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

It is not a de Polignac number, because 977973 - 2¹ = 977971 is a prime.

977973 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977971) 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, 3853 + ... + 4098.

It is an arithmetic number, because the mean of its divisors is an integer number (166992).

2⁹⁷⁷⁹⁷³ is an apocalyptic number.

It is an amenable number.

977973 is a deficient number, since it is larger than the sum of its proper divisors (357963).

977973 is a wasteful number, since it uses less digits than its factorization.

977973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7995.

The product of its digits is 83349, while the sum is 42.

The square root of 977973 is about 988.9251741158. The cubic root of 977973 is about 99.2603087254.

The spelling of 977973 in words is "nine hundred seventy-seven thousand, nine hundred seventy-three".