631269347 has 6 divisors (see below), whose sum is σ = 670587468. Its totient is φ = 594135584.

The previous prime is 631269341. The next prime is 631269349. The reversal of 631269347 is 743962136.

631269347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-631269347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (631269341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1091873 + ... + 1092450.

It is an arithmetic number, because the mean of its divisors is an integer number (111764578).

Almost surely, 2^631269347 is an apocalyptic number.

631269347 is a deficient number, since it is larger than the sum of its proper divisors (39318121).

631269347 is a wasteful number, since it uses less digits than its factorization.

631269347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184357 (or 2184340 counting only the distinct ones).

The product of its digits is 163296, while the sum is 41.

The square root of 631269347 is about 25125.0740695426. The cubic root of 631269347 is about 857.8372495010.

The spelling of 631269347 in words is "six hundred thirty-one million, two hundred sixty-nine thousand, three hundred forty-seven".