670353872 has 10 divisors (see below), whose sum is σ = 1298810658. Its totient is φ = 335176928.

The previous prime is 670353869. The next prime is 670353907. The reversal of 670353872 is 278353076.

It can be written as a sum of positive squares in only one way, i.e., 436141456 + 234212416 = 20884^2 + 15304^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20948543 + ... + 20948574.

Almost surely, 2^670353872 is an apocalyptic number.

It is an amenable number.

670353872 is a deficient number, since it is larger than the sum of its proper divisors (628456786).

670353872 is a wasteful number, since it uses less digits than its factorization.

670353872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41897125 (or 41897119 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 670353872 is about 25891.1929427750. The cubic root of 670353872 is about 875.1880399133.

It can be divided in two parts, 67035 and 3872, that added together give a palindrome (70907).

The spelling of 670353872 in words is "six hundred seventy million, three hundred fifty-three thousand, eight hundred seventy-two".