90905453 has 8 divisors (see below), whose sum is σ = 95344128. Its totient is φ = 86507344.

The previous prime is 90905447. The next prime is 90905461. The reversal of 90905453 is 35450909.

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 90905453 - 2⁸ = 90905197 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 (90905153) 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, 5501 + ... + 14562.

It is an arithmetic number, because the mean of its divisors is an integer number (11918016).

Almost surely, 2^90905453 is an apocalyptic number.

It is an amenable number.

90905453 is a deficient number, since it is larger than the sum of its proper divisors (4438675).

90905453 is a wasteful number, since it uses less digits than its factorization.

90905453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20283.

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 90905453 is about 9534.4351169852. The cubic root of 90905453 is about 449.6383151371.

The spelling of 90905453 in words is "ninety million, nine hundred five thousand, four hundred fifty-three".