670403403 has 12 divisors (see below), whose sum is σ = 969216768. Its totient is φ = 446540400.

The previous prime is 670403399. The next prime is 670403417. The reversal of 670403403 is 304304076.

It is not a de Polignac number, because 670403403 - 2² = 670403399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (670403443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22000 + ... + 42717.

It is an arithmetic number, because the mean of its divisors is an integer number (80768064).

Almost surely, 2^670403403 is an apocalyptic number.

670403403 is a deficient number, since it is larger than the sum of its proper divisors (298813365).

670403403 is a wasteful number, since it uses less digits than its factorization.

670403403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65874 (or 65871 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 670403403 is about 25892.1494472746. The cubic root of 670403403 is about 875.2095946339.

Adding to 670403403 its reverse (304304076), we get a palindrome (974707479).

The spelling of 670403403 in words is "six hundred seventy million, four hundred three thousand, four hundred three".