670293403 has 4 divisors (see below), whose sum is σ = 721854448. Its totient is φ = 618732360.

The previous prime is 670293397. The next prime is 670293431. The reversal of 670293403 is 304392076.

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-670293403 is a prime.

It is a super-2 number, since 2×670293403² = 898586492210640818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670293473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25780503 + ... + 25780528.

It is an arithmetic number, because the mean of its divisors is an integer number (180463612).

Almost surely, 2^670293403 is an apocalyptic number.

670293403 is a deficient number, since it is larger than the sum of its proper divisors (51561045).

670293403 is a wasteful number, since it uses less digits than its factorization.

670293403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51561044.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 670293403 is about 25890.0251641438. The cubic root of 670293403 is about 875.1617237943.

The spelling of 670293403 in words is "six hundred seventy million, two hundred ninety-three thousand, four hundred three".