670234765 has 12 divisors (see below), whose sum is σ = 823432284. Its totient is φ = 523711104.

The previous prime is 670234757. The next prime is 670234777. The reversal of 670234765 is 567432076.

It can be written as a sum of positive squares in 2 ways, for example, as 231709284 + 438525481 = 15222^2 + 20941^2 .

It is not a de Polignac number, because 670234765 - 2³ = 670234757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27004 + ... + 45493.

It is an arithmetic number, because the mean of its divisors is an integer number (68619357).

Almost surely, 2^670234765 is an apocalyptic number.

It is an amenable number.

670234765 is a deficient number, since it is larger than the sum of its proper divisors (153197519).

670234765 is an equidigital number, since it uses as much as digits as its factorization.

670234765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72588 (or 72545 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 40.

The square root of 670234765 is about 25888.8926955171. The cubic root of 670234765 is about 875.1362030151.

The spelling of 670234765 in words is "six hundred seventy million, two hundred thirty-four thousand, seven hundred sixty-five".