92016721 has 8 divisors (see below), whose sum is σ = 96122304. Its totient is φ = 87919920.

The previous prime is 92016709. The next prime is 92016763. The reversal of 92016721 is 12761029.

It is a happy number.

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 92016721 - 2⁹ = 92016209 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 92016721.

It is not an unprimeable number, because it can be changed into a prime (92011721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28531 + ... + 31591.

It is an arithmetic number, because the mean of its divisors is an integer number (12015288).

Almost surely, 2^92016721 is an apocalyptic number.

It is an amenable number.

92016721 is a deficient number, since it is larger than the sum of its proper divisors (4105583).

92016721 is a wasteful number, since it uses less digits than its factorization.

92016721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4391.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 92016721 is about 9592.5346494031. The cubic root of 92016721 is about 451.4630913728.

The spelling of 92016721 in words is "ninety-two million, sixteen thousand, seven hundred twenty-one".