90739189 has 8 divisors (see below), whose sum is σ = 92044160. Its totient is φ = 89442576.

The previous prime is 90739123. The next prime is 90739223. The reversal of 90739189 is 98193709.

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 90739189 - 2¹⁷ = 90608117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90739889) 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, 21664 + ... + 25510.

It is an arithmetic number, because the mean of its divisors is an integer number (11505520).

Almost surely, 2^90739189 is an apocalyptic number.

It is an amenable number.

90739189 is a deficient number, since it is larger than the sum of its proper divisors (1304971).

90739189 is a wasteful number, since it uses less digits than its factorization.

90739189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4179.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 90739189 is about 9525.7119943866. The cubic root of 90739189 is about 449.3640217696.

The spelling of 90739189 in words is "ninety million, seven hundred thirty-nine thousand, one hundred eighty-nine".