677668947 has 8 divisors (see below), whose sum is σ = 918371280. Its totient is φ = 444372960.

The previous prime is 677668931. The next prime is 677668963. The reversal of 677668947 is 749866776.

It is an interprime number because it is at equal distance from previous prime (677668931) and next prime (677668963).

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

It is not a de Polignac number, because 677668947 - 2⁴ = 677668931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (677668967) 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, 1851372 + ... + 1851737.

It is an arithmetic number, because the mean of its divisors is an integer number (114796410).

Almost surely, 2^677668947 is an apocalyptic number.

677668947 is a deficient number, since it is larger than the sum of its proper divisors (240702333).

677668947 is a wasteful number, since it uses less digits than its factorization.

677668947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3703173.

The product of its digits is 21337344, while the sum is 60.

The square root of 677668947 is about 26032.0753494607. The cubic root of 677668947 is about 878.3599563055.

The spelling of 677668947 in words is "six hundred seventy-seven million, six hundred sixty-eight thousand, nine hundred forty-seven".