921271411 has 8 divisors (see below), whose sum is σ = 974787920. Its totient is φ = 868257792.

The previous prime is 921271343. The next prime is 921271427. The reversal of 921271411 is 114172129.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 921271411 - 2⁷ = 921271283 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 921271411.

It is not an unprimeable number, because it can be changed into a prime (921271511) 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 7 ways as a sum of consecutive naturals, for example, 121950 + ... + 129283.

It is an arithmetic number, because the mean of its divisors is an integer number (121848490).

Almost surely, 2^921271411 is an apocalyptic number.

921271411 is a deficient number, since it is larger than the sum of its proper divisors (53516509).

921271411 is a wasteful number, since it uses less digits than its factorization.

921271411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251445.

The product of its digits is 1008, while the sum is 28.

The square root of 921271411 is about 30352.4531298543. The cubic root of 921271411 is about 973.0366490232.

The spelling of 921271411 in words is "nine hundred twenty-one million, two hundred seventy-one thousand, four hundred eleven".