92120021 has 8 divisors (see below), whose sum is σ = 105416640. Its totient is φ = 78857568.

The previous prime is 92120011. The next prime is 92120053. The reversal of 92120021 is 12002129.

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 92120021 - 2¹⁰ = 92118997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (92120011) 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 7 ways as a sum of consecutive naturals, for example, 2471 + ... + 13796.

It is an arithmetic number, because the mean of its divisors is an integer number (13177080).

Almost surely, 2^92120021 is an apocalyptic number.

It is an amenable number.

92120021 is a deficient number, since it is larger than the sum of its proper divisors (13296619).

92120021 is a wasteful number, since it uses less digits than its factorization.

92120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17083.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 92120021 is about 9597.9175345488. The cubic root of 92120021 is about 451.6319690004.

The spelling of 92120021 in words is "ninety-two million, one hundred twenty thousand, twenty-one".