670782995 has 4 divisors (see below), whose sum is σ = 804939600. Its totient is φ = 536626392.

The previous prime is 670782967. The next prime is 670783007. The reversal of 670782995 is 599287076.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670782995 is a prime.

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, 67078295 + ... + 67078304.

It is an arithmetic number, because the mean of its divisors is an integer number (201234900).

Almost surely, 2^670782995 is an apocalyptic number.

670782995 is a deficient number, since it is larger than the sum of its proper divisors (134156605).

670782995 is a wasteful number, since it uses less digits than its factorization.

670782995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134156604.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The square root of 670782995 is about 25899.4786627067. The cubic root of 670782995 is about 875.3747488657.

The spelling of 670782995 in words is "six hundred seventy million, seven hundred eighty-two thousand, nine hundred ninety-five".