677688007 has 8 divisors (see below), whose sum is σ = 685214784. Its totient is φ = 670188288.

The previous prime is 677688001. The next prime is 677688023. The reversal of 677688007 is 700886776.

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 677688007 - 2³ = 677687999 is a prime.

It is a super-2 number, since 2×677688007² = 918522069663264098, 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 (677688001) 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, 45843 + ... + 58795.

It is an arithmetic number, because the mean of its divisors is an integer number (85651848).

Almost surely, 2^677688007 is an apocalyptic number.

677688007 is a deficient number, since it is larger than the sum of its proper divisors (7526777).

677688007 is a wasteful number, since it uses less digits than its factorization.

677688007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13529.

The product of its (nonzero) digits is 790272, while the sum is 49.

The square root of 677688007 is about 26032.4414337188. The cubic root of 677688007 is about 878.3681910952.

The spelling of 677688007 in words is "six hundred seventy-seven million, six hundred eighty-eight thousand, seven".