977423 has 4 divisors (see below), whose sum is σ = 984048. Its totient is φ = 970800.

The previous prime is 977413. The next prime is 977437. The reversal of 977423 is 324779.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 977423 - 2⁴ = 977407 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 977423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3086 + ... + 3387.

It is an arithmetic number, because the mean of its divisors is an integer number (246012).

2⁹⁷⁷⁴²³ is an apocalyptic number.

977423 is a deficient number, since it is larger than the sum of its proper divisors (6625).

977423 is a wasteful number, since it uses less digits than its factorization.

977423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6624.

The product of its digits is 10584, while the sum is 32.

The square root of 977423 is about 988.6470553236. The cubic root of 977423 is about 99.2416976434.

The spelling of 977423 in words is "nine hundred seventy-seven thousand, four hundred twenty-three".