670636417 has 16 divisors (see below), whose sum is σ = 775861632. Its totient is φ = 572901120.

The previous prime is 670636411. The next prime is 670636459. The reversal of 670636417 is 714636076.

670636417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 670636417 - 2³ = 670636409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 670636417.

It is not an unprimeable number, because it can be changed into a prime (670636411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133483 + ... + 138415.

It is an arithmetic number, because the mean of its divisors is an integer number (48491352).

Almost surely, 2^670636417 is an apocalyptic number.

It is an amenable number.

670636417 is a deficient number, since it is larger than the sum of its proper divisors (105225215).

670636417 is a wasteful number, since it uses less digits than its factorization.

670636417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5688.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 670636417 is about 25896.6487600230. The cubic root of 670636417 is about 875.3109825767.

The spelling of 670636417 in words is "six hundred seventy million, six hundred thirty-six thousand, four hundred seventeen".