90230917 has 8 divisors (see below), whose sum is σ = 109187136. Its totient is φ = 72791232.

The previous prime is 90230897. The next prime is 90230923. The reversal of 90230917 is 71903209.

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 90230917 - 2¹⁹ = 89706629 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 (90230927) 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, 379003 + ... + 379240.

It is an arithmetic number, because the mean of its divisors is an integer number (13648392).

Almost surely, 2^90230917 is an apocalyptic number.

It is an amenable number.

90230917 is a deficient number, since it is larger than the sum of its proper divisors (18956219).

90230917 is a wasteful number, since it uses less digits than its factorization.

90230917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758267.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 90230917 is about 9498.9955784809. The cubic root of 90230917 is about 448.5234186411.

The spelling of 90230917 in words is "ninety million, two hundred thirty thousand, nine hundred seventeen".