90654291 has 48 divisors (see below), whose sum is σ = 163537920. Its totient is φ = 47113920.

The previous prime is 90654287. The next prime is 90654299. The reversal of 90654291 is 19245609.

It is not a de Polignac number, because 90654291 - 2² = 90654287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90654299) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57370 + ... + 58928.

It is an arithmetic number, because the mean of its divisors is an integer number (3407040).

Almost surely, 2^90654291 is an apocalyptic number.

90654291 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

90654291 is a deficient number, since it is larger than the sum of its proper divisors (72883629).

90654291 is a wasteful number, since it uses less digits than its factorization.

90654291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656 (or 1653 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 90654291 is about 9521.2546967298. The cubic root of 90654291 is about 449.2238323931.

The spelling of 90654291 in words is "ninety million, six hundred fifty-four thousand, two hundred ninety-one".