670741357 has 18 divisors (see below), whose sum is σ = 795191306. Its totient is φ = 561997920.

The previous prime is 670741349. The next prime is 670741361. The reversal of 670741357 is 753147076.

It can be written as a sum of positive squares in 3 ways, for example, as 4791721 + 665949636 = 2189^2 + 25806^2 .

It is not a de Polignac number, because 670741357 - 2³ = 670741349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670741397) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1026843 + ... + 1027495.

Almost surely, 2^670741357 is an apocalyptic number.

It is an amenable number.

670741357 is a deficient number, since it is larger than the sum of its proper divisors (124449949).

670741357 is an equidigital number, since it uses as much as digits as its factorization.

670741357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 40.

The square root of 670741357 is about 25898.6748116578. The cubic root of 670741357 is about 875.3566359001.

The spelling of 670741357 in words is "six hundred seventy million, seven hundred forty-one thousand, three hundred fifty-seven".