906648631 has 8 divisors (see below), whose sum is σ = 1090705280. Its totient is φ = 736225848.

The previous prime is 906648571. The next prime is 906648637. The reversal of 906648631 is 136846609.

906648631 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 a cyclic number.

It is not a de Polignac number, because 906648631 - 2⁷ = 906648503 is a prime.

It is a super-2 number, since 2×906648631² = 1644023480188348322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (906648637) 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, 3408321 + ... + 3408586.

It is an arithmetic number, because the mean of its divisors is an integer number (136338160).

Almost surely, 2^906648631 is an apocalyptic number.

906648631 is a deficient number, since it is larger than the sum of its proper divisors (184056649).

906648631 is a wasteful number, since it uses less digits than its factorization.

906648631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6816933.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 906648631 is about 30110.6066195950. The cubic root of 906648631 is about 967.8610291441.

The spelling of 906648631 in words is "nine hundred six million, six hundred forty-eight thousand, six hundred thirty-one".