90437093 has 8 divisors (see below), whose sum is σ = 100797120. Its totient is φ = 80637120.

The previous prime is 90437047. The next prime is 90437099. The reversal of 90437093 is 39073409.

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

It is not a de Polignac number, because 90437093 - 2⁸ = 90436837 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 (90437099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139673 + ... + 140318.

It is an arithmetic number, because the mean of its divisors is an integer number (12599640).

Almost surely, 2^90437093 is an apocalyptic number.

It is an amenable number.

90437093 is a deficient number, since it is larger than the sum of its proper divisors (10360027).

90437093 is a wasteful number, since it uses less digits than its factorization.

90437093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280027.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 90437093 is about 9509.8419019456. The cubic root of 90437093 is about 448.8647813814.

The spelling of 90437093 in words is "ninety million, four hundred thirty-seven thousand, ninety-three".