906926431 has 4 divisors (see below), whose sum is σ = 914067712. Its totient is φ = 899785152.

The previous prime is 906926417. The next prime is 906926443. The reversal of 906926431 is 134629609.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-906926431 is a prime.

It is a super-2 number, since 2×906926431² = 1645031102492795522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (906926131) 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 3 ways as a sum of consecutive naturals, for example, 3570450 + ... + 3570703.

It is an arithmetic number, because the mean of its divisors is an integer number (228516928).

Almost surely, 2^906926431 is an apocalyptic number.

906926431 is a deficient number, since it is larger than the sum of its proper divisors (7141281).

906926431 is a wasteful number, since it uses less digits than its factorization.

906926431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7141280.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 906926431 is about 30115.2192587070. The cubic root of 906926431 is about 967.9598709402.

The spelling of 906926431 in words is "nine hundred six million, nine hundred twenty-six thousand, four hundred thirty-one".