677066715 has 32 divisors (see below), whose sum is σ = 1296267840. Its totient is φ = 333324288.

The previous prime is 677066711. The next prime is 677066723. The reversal of 677066715 is 517660776.

It is not a de Polignac number, because 677066715 - 2² = 677066711 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (677066711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191142 + ... + 194651.

It is an arithmetic number, because the mean of its divisors is an integer number (40508370).

Almost surely, 2^677066715 is an apocalyptic number.

677066715 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

677066715 is a deficient number, since it is larger than the sum of its proper divisors (619201125).

677066715 is a wasteful number, since it uses less digits than its factorization.

677066715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385820 (or 385814 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The square root of 677066715 is about 26020.5056638029. The cubic root of 677066715 is about 878.0996850476.

The spelling of 677066715 in words is "six hundred seventy-seven million, sixty-six thousand, seven hundred fifteen".