631450747 has 2 divisors, whose sum is σ = 631450748. Its totient is φ = 631450746.

The previous prime is 631450741. The next prime is 631450751. The reversal of 631450747 is 747054136.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 631450747 - 2¹⁹ = 630926459 is a prime.

It is not a weakly prime, because it can be changed into another prime (631450741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315725373 + 315725374.

It is an arithmetic number, because the mean of its divisors is an integer number (315725374).

Almost surely, 2^631450747 is an apocalyptic number.

631450747 is a deficient number, since it is larger than the sum of its proper divisors (1).

631450747 is an equidigital number, since it uses as much as digits as its factorization.

631450747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 631450747 is about 25128.6837498505. The cubic root of 631450747 is about 857.9194102959.

The spelling of 631450747 in words is "six hundred thirty-one million, four hundred fifty thousand, seven hundred forty-seven".