670537730 has 16 divisors (see below), whose sum is σ = 1209496320. Its totient is φ = 267653232.

The previous prime is 670537729. The next prime is 670537771. The reversal of 670537730 is 37735076.

It is a happy number.

670537730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65204 + ... + 74783.

It is an arithmetic number, because the mean of its divisors is an integer number (75593520).

Almost surely, 2^670537730 is an apocalyptic number.

670537730 is a deficient number, since it is larger than the sum of its proper divisors (538958590).

670537730 is a wasteful number, since it uses less digits than its factorization.

670537730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140473.

The product of its (nonzero) digits is 92610, while the sum is 38.

The square root of 670537730 is about 25894.7432889380. The cubic root of 670537730 is about 875.2680452263.

The spelling of 670537730 in words is "six hundred seventy million, five hundred thirty-seven thousand, seven hundred thirty".