909794431 has 12 divisors (see below), whose sum is σ = 1125900912. Its totient is φ = 719836416.

The previous prime is 909794419. The next prime is 909794437. The reversal of 909794431 is 134497909.

It is not a de Polignac number, because 909794431 - 2¹³ = 909786239 is a prime.

It is a super-2 number, since 2×909794431² = 1655451813357227522, 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 (909794437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 383346 + ... + 385711.

It is an arithmetic number, because the mean of its divisors is an integer number (93825076).

Almost surely, 2^909794431 is an apocalyptic number.

909794431 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

909794431 is the 17415-th hex number.

909794431 is a deficient number, since it is larger than the sum of its proper divisors (216106481).

909794431 is a wasteful number, since it uses less digits than its factorization.

909794431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769090 (or 769077 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 909794431 is about 30162.7987925524. The cubic root of 909794431 is about 968.9791332243.

The spelling of 909794431 in words is "nine hundred nine million, seven hundred ninety-four thousand, four hundred thirty-one".