94109721 has 8 divisors (see below), whose sum is σ = 130935360. Its totient is φ = 60011952.

The previous prime is 94109713. The next prime is 94109731. The reversal of 94109721 is 12790149.

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

It is not a de Polignac number, because 94109721 - 2³ = 94109713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (94109731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681886 + ... + 682023.

It is an arithmetic number, because the mean of its divisors is an integer number (16366920).

Almost surely, 2^94109721 is an apocalyptic number.

It is an amenable number.

94109721 is a deficient number, since it is larger than the sum of its proper divisors (36825639).

94109721 is a wasteful number, since it uses less digits than its factorization.

94109721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363935.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 94109721 is about 9701.0164931310. The cubic root of 94109721 is about 454.8604345925.

It can be divided in two parts, 94109 and 721, that added together give a triangular number (94830 = T₄₃₅).

The spelling of 94109721 in words is "ninety-four million, one hundred nine thousand, seven hundred twenty-one".