670545706 has 8 divisors (see below), whose sum is σ = 1008001764. Its totient is φ = 334545120.

The previous prime is 670545683. The next prime is 670545727. The reversal of 670545706 is 607545076.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 627051681 + 43494025 = 25041^2 + 6595^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362715 + ... + 364558.

Almost surely, 2^670545706 is an apocalyptic number.

670545706 is a deficient number, since it is larger than the sum of its proper divisors (337456058).

670545706 is a wasteful number, since it uses less digits than its factorization.

670545706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727736.

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 670545706 is about 25894.8972965718. The cubic root of 670545706 is about 875.2715156302.

The spelling of 670545706 in words is "six hundred seventy million, five hundred forty-five thousand, seven hundred six".