977393 has 4 divisors (see below), whose sum is σ = 979968. Its totient is φ = 974820.

The previous prime is 977369. The next prime is 977407. The reversal of 977393 is 393779.

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 977393 - 2¹⁰ = 976369 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977323) 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, 593 + ... + 1518.

It is an arithmetic number, because the mean of its divisors is an integer number (244992).

2⁹⁷⁷³⁹³ is an apocalyptic number.

It is an amenable number.

977393 is a deficient number, since it is larger than the sum of its proper divisors (2575).

977393 is a wasteful number, since it uses less digits than its factorization.

977393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574.

The product of its digits is 35721, while the sum is 38.

The square root of 977393 is about 988.6318829575. The cubic root of 977393 is about 99.2406822927.

The spelling of 977393 in words is "nine hundred seventy-seven thousand, three hundred ninety-three".