921265969 has 16 divisors (see below), whose sum is σ = 1000581120. Its totient is φ = 843192000.

The previous prime is 921265963. The next prime is 921265973. The reversal of 921265969 is 969562129.

It is a cyclic number.

It is not a de Polignac number, because 921265969 - 2⁵ = 921265937 is a prime.

It is a super-2 number, since 2×921265969² = 1697461971275017922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (921265963) 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 15 ways as a sum of consecutive naturals, for example, 1226344 + ... + 1227094.

It is an arithmetic number, because the mean of its divisors is an integer number (62536320).

Almost surely, 2^921265969 is an apocalyptic number.

It is an amenable number.

921265969 is a deficient number, since it is larger than the sum of its proper divisors (79315151).

921265969 is a wasteful number, since it uses less digits than its factorization.

921265969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440.

The product of its digits is 524880, while the sum is 49.

The square root of 921265969 is about 30352.3634829316. The cubic root of 921265969 is about 973.0347330928.

The spelling of 921265969 in words is "nine hundred twenty-one million, two hundred sixty-five thousand, nine hundred sixty-nine".