676658731 has 8 divisors (see below), whose sum is σ = 798270464. Its totient is φ = 561283560.

The previous prime is 676658729. The next prime is 676658747. The reversal of 676658731 is 137856676.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 676658731 - 2¹ = 676658729 is a prime.

It is a super-2 number, since 2×676658731² = 915734076477060722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (676658431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1558905 + ... + 1559338.

It is an arithmetic number, because the mean of its divisors is an integer number (99783808).

Almost surely, 2^676658731 is an apocalyptic number.

676658731 is a deficient number, since it is larger than the sum of its proper divisors (121611733).

676658731 is a wasteful number, since it uses less digits than its factorization.

676658731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3118281.

The product of its digits is 1270080, while the sum is 49.

The square root of 676658731 is about 26012.6648192760. The cubic root of 676658731 is about 877.9232757437.

The spelling of 676658731 in words is "six hundred seventy-six million, six hundred fifty-eight thousand, seven hundred thirty-one".