670677747 has 8 divisors (see below), whose sum is σ = 894976656. Its totient is φ = 446748672.

The previous prime is 670677739. The next prime is 670677779. The reversal of 670677747 is 747776076.

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

It is not a de Polignac number, because 670677747 - 2³ = 670677739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 670677747.

It is not an unprimeable number, because it can be changed into a prime (670677347) 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, 88198 + ... + 95499.

It is an arithmetic number, because the mean of its divisors is an integer number (111872082).

Almost surely, 2^670677747 is an apocalyptic number.

670677747 is a deficient number, since it is larger than the sum of its proper divisors (224298909).

670677747 is a wasteful number, since it uses less digits than its factorization.

670677747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184917.

The product of its (nonzero) digits is 2420208, while the sum is 51.

The square root of 670677747 is about 25897.4467274286. The cubic root of 670677747 is about 875.3289634372.

The spelling of 670677747 in words is "six hundred seventy million, six hundred seventy-seven thousand, seven hundred forty-seven".