670609863 has 48 divisors (see below), whose sum is σ = 1278740736. Its totient is φ = 327870720.

The previous prime is 670609859. The next prime is 670609909. The reversal of 670609863 is 368906076.

It is not a de Polignac number, because 670609863 - 2² = 670609859 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670609843) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16681 + ... + 40242.

It is an arithmetic number, because the mean of its divisors is an integer number (26640432).

Almost surely, 2^670609863 is an apocalyptic number.

670609863 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

670609863 is a deficient number, since it is larger than the sum of its proper divisors (608130873).

670609863 is a wasteful number, since it uses less digits than its factorization.

670609863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56964 (or 56961 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 670609863 is about 25896.1360631273. The cubic root of 670609863 is about 875.2994297123.

The spelling of 670609863 in words is "six hundred seventy million, six hundred nine thousand, eight hundred sixty-three".