670767898 has 4 divisors (see below), whose sum is σ = 1006151850. Its totient is φ = 335383948.

The previous prime is 670767847. The next prime is 670767919. The reversal of 670767898 is 898767076.

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

It can be written as a sum of positive squares in only one way, i.e., 637209049 + 33558849 = 25243^2 + 5793^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167691973 + ... + 167691976.

Almost surely, 2^670767898 is an apocalyptic number.

670767898 is a deficient number, since it is larger than the sum of its proper divisors (335383952).

670767898 is a wasteful number, since it uses less digits than its factorization.

670767898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335383951.

The product of its (nonzero) digits is 7112448, while the sum is 58.

The square root of 670767898 is about 25899.1872073237. The cubic root of 670767898 is about 875.3681815994.

The spelling of 670767898 in words is "six hundred seventy million, seven hundred sixty-seven thousand, eight hundred ninety-eight".