670403674 has 4 divisors (see below), whose sum is σ = 1005605514. Its totient is φ = 335201836.

The previous prime is 670403647. The next prime is 670403689. The reversal of 670403674 is 476304076.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 626751225 + 43652449 = 25035^2 + 6607^2 .

It is a super-2 number, since 2×670403674² = 898882172225396552, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 167600917 + ... + 167600920.

Almost surely, 2^670403674 is an apocalyptic number.

670403674 is a deficient number, since it is larger than the sum of its proper divisors (335201840).

670403674 is a wasteful number, since it uses less digits than its factorization.

670403674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335201839.

The product of its (nonzero) digits is 84672, while the sum is 37.

The square root of 670403674 is about 25892.1546805205. The cubic root of 670403674 is about 875.2097125638.

The spelling of 670403674 in words is "six hundred seventy million, four hundred three thousand, six hundred seventy-four".