90602291 has 8 divisors (see below), whose sum is σ = 99028944. Its totient is φ = 82383840.

The previous prime is 90602287. The next prime is 90602297. The reversal of 90602291 is 19220609.

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 90602291 - 2² = 90602287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90602297) 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, 51140 + ... + 52881.

It is an arithmetic number, because the mean of its divisors is an integer number (12378618).

Almost surely, 2^90602291 is an apocalyptic number.

90602291 is a deficient number, since it is larger than the sum of its proper divisors (8426653).

90602291 is a wasteful number, since it uses less digits than its factorization.

90602291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104101.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 90602291 is about 9518.5235724875. The cubic root of 90602291 is about 449.1379232141.

The spelling of 90602291 in words is "ninety million, six hundred two thousand, two hundred ninety-one".