631819097 has 8 divisors (see below), whose sum is σ = 777623616. Its totient is φ = 499900752.

The previous prime is 631819063. The next prime is 631819109. The reversal of 631819097 is 790918136.

631819097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 631819097 - 2¹² = 631815001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (631819037) 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, 3471443 + ... + 3471624.

It is an arithmetic number, because the mean of its divisors is an integer number (97202952).

Almost surely, 2^631819097 is an apocalyptic number.

It is an amenable number.

631819097 is a deficient number, since it is larger than the sum of its proper divisors (145804519).

631819097 is a wasteful number, since it uses less digits than its factorization.

631819097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6943087.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 631819097 is about 25136.0119549621. The cubic root of 631819097 is about 858.0861972217.

The spelling of 631819097 in words is "six hundred thirty-one million, eight hundred nineteen thousand, ninety-seven".