906226913 has 4 divisors (see below), whose sum is σ = 923325588. Its totient is φ = 889128240.

The previous prime is 906226901. The next prime is 906226921. The reversal of 906226913 is 319622609.

906226913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 319622609 = 11093 ⋅28813.

It can be written as a sum of positive squares in 2 ways, for example, as 747038224 + 159188689 = 27332^2 + 12617^2 .

It is a cyclic number.

It is not a de Polignac number, because 906226913 - 2¹⁰ = 906225889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (906226963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8549258 + ... + 8549363.

It is an arithmetic number, because the mean of its divisors is an integer number (230831397).

Almost surely, 2^906226913 is an apocalyptic number.

It is an amenable number.

906226913 is a deficient number, since it is larger than the sum of its proper divisors (17098675).

906226913 is a wasteful number, since it uses less digits than its factorization.

906226913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17098674.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 906226913 is about 30103.6029903399. The cubic root of 906226913 is about 967.7109424385.

The spelling of 906226913 in words is "nine hundred six million, two hundred twenty-six thousand, nine hundred thirteen".