507977 has 4 divisors (see below), whose sum is σ = 537876. Its totient is φ = 478080.

The previous prime is 507971. The next prime is 507979. The reversal of 507977 is 779705.

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

It can be written as a sum of positive squares in 2 ways, for example, as 215296 + 292681 = 464^2 + 541^2 .

It is a cyclic number.

It is not a de Polignac number, because 507977 - 2⁴ = 507961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (507971) 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, 14924 + ... + 14957.

It is an arithmetic number, because the mean of its divisors is an integer number (134469).

2⁵⁰⁷⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

507977 is a deficient number, since it is larger than the sum of its proper divisors (29899).

507977 is a wasteful number, since it uses less digits than its factorization.

507977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29898.

The product of its (nonzero) digits is 15435, while the sum is 35.

The square root of 507977 is about 712.7250521765. The cubic root of 507977 is about 79.7899175500.

The spelling of 507977 in words is "five hundred seven thousand, nine hundred seventy-seven".