670263172 has 12 divisors (see below), whose sum is σ = 1180157776. Its totient is φ = 333075240.

The previous prime is 670263137. The next prime is 670263197. The reversal of 670263172 is 271362076.

It is a happy number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 513354 + ... + 514657.

Almost surely, 2^670263172 is an apocalyptic number.

It is an amenable number.

670263172 is a deficient number, since it is larger than the sum of its proper divisors (509894604).

670263172 is a wasteful number, since it uses less digits than its factorization.

670263172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028178 (or 1028176 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 670263172 is about 25889.4413226705. The cubic root of 670263172 is about 875.1485666645.

The spelling of 670263172 in words is "six hundred seventy million, two hundred sixty-three thousand, one hundred seventy-two".