677046431 has 4 divisors (see below), whose sum is σ = 677814072. Its totient is φ = 676278792.

The previous prime is 677046427. The next prime is 677046439. The reversal of 677046431 is 134640776.

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 677046431 - 2² = 677046427 is a prime.

It is a super-2 number, since 2×677046431² = 916783739459675522, 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 (677046439) 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, 382496 + ... + 384261.

It is an arithmetic number, because the mean of its divisors is an integer number (169453518).

Almost surely, 2^677046431 is an apocalyptic number.

677046431 is a deficient number, since it is larger than the sum of its proper divisors (767641).

677046431 is an equidigital number, since it uses as much as digits as its factorization.

677046431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767640.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 677046431 is about 26020.1158913637. The cubic root of 677046431 is about 878.0909160684.

The spelling of 677046431 in words is "six hundred seventy-seven million, forty-six thousand, four hundred thirty-one".