90740089 has 8 divisors (see below), whose sum is σ = 99509760. Its totient is φ = 82057200.

The previous prime is 90740077. The next prime is 90740099. The reversal of 90740089 is 98004709.

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 a de Polignac number, because none of the positive numbers 2^k-90740089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90740099) 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, 19494 + ... + 23695.

It is an arithmetic number, because the mean of its divisors is an integer number (12438720).

Almost surely, 2^90740089 is an apocalyptic number.

It is an amenable number.

90740089 is a deficient number, since it is larger than the sum of its proper divisors (8769671).

90740089 is a wasteful number, since it uses less digits than its factorization.

90740089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43391.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 90740089 is about 9525.7592348327. The cubic root of 90740089 is about 449.3655074425.

The spelling of 90740089 in words is "ninety million, seven hundred forty thousand, eighty-nine".