676746731 has 4 divisors (see below), whose sum is σ = 712365000. Its totient is φ = 641128464.

The previous prime is 676746713. The next prime is 676746739. The reversal of 676746731 is 137647676.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-676746731 is a prime.

It is a super-2 number, since 2×676746731² = 915972275838372722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (676746739) 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, 17809106 + ... + 17809143.

It is an arithmetic number, because the mean of its divisors is an integer number (178091250).

Almost surely, 2^676746731 is an apocalyptic number.

676746731 is a deficient number, since it is larger than the sum of its proper divisors (35618269).

676746731 is a wasteful number, since it uses less digits than its factorization.

676746731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35618268.

The product of its digits is 889056, while the sum is 47.

The square root of 676746731 is about 26014.3562480412. The cubic root of 676746731 is about 877.9613322980.

The spelling of 676746731 in words is "six hundred seventy-six million, seven hundred forty-six thousand, seven hundred thirty-one".