670404074 has 4 divisors (see below), whose sum is σ = 1005606114. Its totient is φ = 335202036.

The previous prime is 670404011. The next prime is 670404083. The reversal of 670404074 is 470404076.

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., 602457025 + 67947049 = 24545^2 + 8243^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 670404074.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167601017 + ... + 167601020.

Almost surely, 2^670404074 is an apocalyptic number.

670404074 is a deficient number, since it is larger than the sum of its proper divisors (335202040).

670404074 is a wasteful number, since it uses less digits than its factorization.

670404074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335202039.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 670404074 is about 25892.1624048668. The cubic root of 670404074 is about 875.2098866300.

The spelling of 670404074 in words is "six hundred seventy million, four hundred four thousand, seventy-four".