677084731 has 2 divisors, whose sum is σ = 677084732. Its totient is φ = 677084730.

The previous prime is 677084729. The next prime is 677084753. The reversal of 677084731 is 137480776.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 677084731 - 2¹ = 677084729 is a prime.

It is a super-2 number, since 2×677084731² = 916887465906684722, which contains 22 as substring.

Together with 677084729, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (677084131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338542365 + 338542366.

It is an arithmetic number, because the mean of its divisors is an integer number (338542366).

Almost surely, 2^677084731 is an apocalyptic number.

677084731 is a deficient number, since it is larger than the sum of its proper divisors (1).

677084731 is an equidigital number, since it uses as much as digits as its factorization.

677084731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 197568, while the sum is 43.

The square root of 677084731 is about 26020.8518500068. The cubic root of 677084731 is about 878.1074734005.

The spelling of 677084731 in words is "six hundred seventy-seven million, eighty-four thousand, seven hundred thirty-one".