670404005 has 16 divisors (see below), whose sum is σ = 823392000. Its totient is φ = 523768512.

The previous prime is 670404001. The next prime is 670404011. The reversal of 670404005 is 500404076.

It is a cyclic number.

It is not a de Polignac number, because 670404005 - 2² = 670404001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670404001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114407 + ... + 120123.

It is an arithmetic number, because the mean of its divisors is an integer number (51462000).

Almost surely, 2^670404005 is an apocalyptic number.

It is an amenable number.

670404005 is a deficient number, since it is larger than the sum of its proper divisors (152987995).

670404005 is a wasteful number, since it uses less digits than its factorization.

670404005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6268.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 670404005 is about 25892.1610724173. The cubic root of 670404005 is about 875.2098566036.

The spelling of 670404005 in words is "six hundred seventy million, four hundred four thousand, five".