670663503 has 8 divisors (see below), whose sum is σ = 993575600. Its totient is φ = 447108984.

The previous prime is 670663493. The next prime is 670663531. The reversal of 670663503 is 305366076.

It is not a de Polignac number, because 670663503 - 2⁶ = 670663439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670663403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12419668 + ... + 12419721.

It is an arithmetic number, because the mean of its divisors is an integer number (124196950).

Almost surely, 2^670663503 is an apocalyptic number.

670663503 is a deficient number, since it is larger than the sum of its proper divisors (322912097).

670663503 is a wasteful number, since it uses less digits than its factorization.

670663503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24839398 (or 24839392 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 36.

The square root of 670663503 is about 25897.1717181626. The cubic root of 670663503 is about 875.3227665843.

The spelling of 670663503 in words is "six hundred seventy million, six hundred sixty-three thousand, five hundred three".