677323791 has 6 divisors (see below), whose sum is σ = 978356600. Its totient is φ = 451549188.

The previous prime is 677323783. The next prime is 677323793. The reversal of 677323791 is 197323776.

It is not a de Polignac number, because 677323791 - 2³ = 677323783 is a prime.

It is a super-2 number, since 2×677323791² = 917535035709223362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677323793) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37629091 + ... + 37629108.

Almost surely, 2^677323791 is an apocalyptic number.

677323791 is a deficient number, since it is larger than the sum of its proper divisors (301032809).

677323791 is a wasteful number, since it uses less digits than its factorization.

677323791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75258205 (or 75258202 counting only the distinct ones).

The product of its digits is 333396, while the sum is 45.

The square root of 677323791 is about 26025.4450682404. The cubic root of 677323791 is about 878.2108064410.

The spelling of 677323791 in words is "six hundred seventy-seven million, three hundred twenty-three thousand, seven hundred ninety-one".