631359497 has 8 divisors (see below), whose sum is σ = 647908800. Its totient is φ = 614895120.

The previous prime is 631359467. The next prime is 631359523. The reversal of 631359497 is 794953136.

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

It is a cyclic number.

It is not a de Polignac number, because 631359497 - 2⁸ = 631359241 is a prime.

It is a super-2 number, since 2×631359497² = 797229628904186018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (631359437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6029 + ... + 36042.

It is an arithmetic number, because the mean of its divisors is an integer number (80988600).

Almost surely, 2^631359497 is an apocalyptic number.

It is an amenable number.

631359497 is a deficient number, since it is larger than the sum of its proper divisors (16549303).

631359497 is a wasteful number, since it uses less digits than its factorization.

631359497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42463.

The product of its digits is 612360, while the sum is 47.

The square root of 631359497 is about 25126.8680300590. The cubic root of 631359497 is about 857.8780827562.

The spelling of 631359497 in words is "six hundred thirty-one million, three hundred fifty-nine thousand, four hundred ninety-seven".