670844494 has 16 divisors (see below), whose sum is σ = 1025662176. Its totient is φ = 329005600.

The previous prime is 670844491. The next prime is 670844527. The reversal of 670844494 is 494448076.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670844491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15984 + ... + 39964.

It is an arithmetic number, because the mean of its divisors is an integer number (64103886).

Almost surely, 2^670844494 is an apocalyptic number.

670844494 is a deficient number, since it is larger than the sum of its proper divisors (354817682).

670844494 is a wasteful number, since it uses less digits than its factorization.

670844494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24251.

The product of its (nonzero) digits is 774144, while the sum is 46.

The square root of 670844494 is about 25900.6658987757. The cubic root of 670844494 is about 875.4015002031.

The spelling of 670844494 in words is "six hundred seventy million, eight hundred forty-four thousand, four hundred ninety-four".