670409078 has 32 divisors (see below), whose sum is σ = 1041268800. Its totient is φ = 323606016.

The previous prime is 670409071. The next prime is 670409147. The reversal of 670409078 is 870904076.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670409071) 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, 1638938 + ... + 1639346.

It is an arithmetic number, because the mean of its divisors is an integer number (32539650).

Almost surely, 2^670409078 is an apocalyptic number.

670409078 is a deficient number, since it is larger than the sum of its proper divisors (370859722).

670409078 is a wasteful number, since it uses less digits than its factorization.

670409078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 670409078 is about 25892.2590362448. The cubic root of 670409078 is about 875.2120641920.

The spelling of 670409078 in words is "six hundred seventy million, four hundred nine thousand, seventy-eight".