670663734 has 32 divisors (see below), whose sum is σ = 1491108864. Its totient is φ = 199700640.

The previous prime is 670663699. The next prime is 670663757. The reversal of 670663734 is 437366076.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136264 + ... + 141099.

It is an arithmetic number, because the mean of its divisors is an integer number (46597152).

Almost surely, 2^670663734 is an apocalyptic number.

670663734 is an abundant number, since it is smaller than the sum of its proper divisors (820445130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670663734 is a wasteful number, since it uses less digits than its factorization.

670663734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277412.

The product of its (nonzero) digits is 381024, while the sum is 42.

The square root of 670663734 is about 25897.1761781087. The cubic root of 670663734 is about 875.3228670816.

The spelling of 670663734 in words is "six hundred seventy million, six hundred sixty-three thousand, seven hundred thirty-four".