610977 has 4 divisors (see below), whose sum is σ = 814640. Its totient is φ = 407316.

The previous prime is 610969. The next prime is 610993. The reversal of 610977 is 779016.

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 not a de Polignac number, because 610977 - 2³ = 610969 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (610957) 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, 101827 + ... + 101832.

It is an arithmetic number, because the mean of its divisors is an integer number (203660).

2⁶¹⁰⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

610977 is a deficient number, since it is larger than the sum of its proper divisors (203663).

610977 is a wasteful number, since it uses less digits than its factorization.

610977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203662.

The product of its (nonzero) digits is 2646, while the sum is 30.

The square root of 610977 is about 781.6501775091. The cubic root of 610977 is about 84.8545146830.

The spelling of 610977 in words is "six hundred ten thousand, nine hundred seventy-seven".