89703921 has 8 divisors (see below), whose sum is σ = 125900320. Its totient is φ = 56655072.

The previous prime is 89703877. The next prime is 89703923. The reversal of 89703921 is 12930798.

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

It is not a de Polignac number, because 89703921 - 2⁷ = 89703793 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 89703921.

It is not an unprimeable number, because it can be changed into a prime (89703923) 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, 786820 + ... + 786933.

It is an arithmetic number, because the mean of its divisors is an integer number (15737540).

Almost surely, 2^89703921 is an apocalyptic number.

It is an amenable number.

89703921 is a deficient number, since it is larger than the sum of its proper divisors (36196399).

89703921 is a wasteful number, since it uses less digits than its factorization.

89703921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573775.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 89703921 is about 9471.2153919125. The cubic root of 89703921 is about 447.6485089113.

The spelling of 89703921 in words is "eighty-nine million, seven hundred three thousand, nine hundred twenty-one".