90454 has 24 divisors (see below), whose sum is σ = 172368. Its totient is φ = 35280.

The previous prime is 90439. The next prime is 90469. The reversal of 90454 is 45409.

It is an interprime number because it is at equal distance from previous prime (90439) and next prime (90469).

It is a super-2 number, since 2×90454² = 16363852232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1239 + ... + 1309.

It is an arithmetic number, because the mean of its divisors is an integer number (7182).

2⁹⁰⁴⁵⁴ is an apocalyptic number.

90454 is a deficient number, since it is larger than the sum of its proper divisors (81914).

90454 is a wasteful number, since it uses less digits than its factorization.

90454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 90454 is about 300.7557148252. The cubic root of 90454 is about 44.8892751041.

The spelling of 90454 in words is "ninety thousand, four hundred fifty-four".