906738861 has 12 divisors (see below), whose sum is σ = 1381907616. Its totient is φ = 518057640.

The previous prime is 906738851. The next prime is 906738863. The reversal of 906738861 is 168837609.

It is not a de Polignac number, because 906738861 - 2⁵ = 906738829 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 906738861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (906738863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134706 + ... + 141276.

It is an arithmetic number, because the mean of its divisors is an integer number (115158968).

Almost surely, 2^906738861 is an apocalyptic number.

It is an amenable number.

906738861 is a deficient number, since it is larger than the sum of its proper divisors (475168755).

906738861 is an frugal number, since it uses more digits than its factorization.

906738861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13152 (or 6581 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 906738861 is about 30112.1048915548. The cubic root of 906738861 is about 967.8931353723.

Multiplying 906738861 by its product of nonzero digits (435456), we get a square (394844877455616 = 19870704²).

The spelling of 906738861 in words is "nine hundred six million, seven hundred thirty-eight thousand, eight hundred sixty-one".