90017351 has 4 divisors (see below), whose sum is σ = 90149832. Its totient is φ = 89884872.

The previous prime is 90017341. The next prime is 90017371. The reversal of 90017351 is 15371009.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90017351 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 90017351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90017321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65216 + ... + 66581.

It is an arithmetic number, because the mean of its divisors is an integer number (22537458).

Almost surely, 2^90017351 is an apocalyptic number.

90017351 is a deficient number, since it is larger than the sum of its proper divisors (132481).

90017351 is a wasteful number, since it uses less digits than its factorization.

90017351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132480.

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 90017351 is about 9487.7474144288. The cubic root of 90017351 is about 448.1692716399.

The spelling of 90017351 in words is "ninety million, seventeen thousand, three hundred fifty-one".