631103709 has 8 divisors (see below), whose sum is σ = 864214240. Its totient is φ = 409364496.

The previous prime is 631103663. The next prime is 631103723. The reversal of 631103709 is 907301136.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 631103709 - 2⁹ = 631103197 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 (631103609) 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, 2842699 + ... + 2842920.

It is an arithmetic number, because the mean of its divisors is an integer number (108026780).

Almost surely, 2^631103709 is an apocalyptic number.

It is an amenable number.

631103709 is a deficient number, since it is larger than the sum of its proper divisors (233110531).

631103709 is a wasteful number, since it uses less digits than its factorization.

631103709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5685659.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 631103709 is about 25121.7775843988. Note that the first 3 decimals coincide. The cubic root of 631103709 is about 857.7622139785.

The spelling of 631103709 in words is "six hundred thirty-one million, one hundred three thousand, seven hundred nine".