921089401 has 8 divisors (see below), whose sum is σ = 935590784. Its totient is φ = 906610320.

The previous prime is 921089357. The next prime is 921089423. The reversal of 921089401 is 104980129.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-921089401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (921089431) 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, 90511 + ... + 100171.

It is an arithmetic number, because the mean of its divisors is an integer number (116948848).

Almost surely, 2^921089401 is an apocalyptic number.

It is an amenable number.

921089401 is a deficient number, since it is larger than the sum of its proper divisors (14501383).

921089401 is a wasteful number, since it uses less digits than its factorization.

921089401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11151.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 921089401 is about 30349.4547067983. The cubic root of 921089401 is about 972.9725658216.

The spelling of 921089401 in words is "nine hundred twenty-one million, eighty-nine thousand, four hundred one".