670725896 has 8 divisors (see below), whose sum is σ = 1257611070. Its totient is φ = 335362944.

The previous prime is 670725893. The next prime is 670725907. The reversal of 670725896 is 698527076.

It can be written as a sum of positive squares in only one way, i.e., 664917796 + 5808100 = 25786^2 + 2410^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (670725893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41920361 + ... + 41920376.

Almost surely, 2^670725896 is an apocalyptic number.

It is an amenable number.

670725896 is a deficient number, since it is larger than the sum of its proper divisors (586885174).

670725896 is a wasteful number, since it uses less digits than its factorization.

670725896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83840743 (or 83840739 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 50.

The square root of 670725896 is about 25898.3763197618. The cubic root of 670725896 is about 875.3499100125.

The spelling of 670725896 in words is "six hundred seventy million, seven hundred twenty-five thousand, eight hundred ninety-six".