90291801 has 8 divisors (see below), whose sum is σ = 120455200. Its totient is φ = 60161472.

The previous prime is 90291779. The next prime is 90291827. The reversal of 90291801 is 10819209.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90291801 - 2¹¹ = 90289753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90295801) 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, 976 + ... + 13473.

It is an arithmetic number, because the mean of its divisors is an integer number (15056900).

Almost surely, 2^90291801 is an apocalyptic number.

It is an amenable number.

90291801 is a deficient number, since it is larger than the sum of its proper divisors (30163399).

90291801 is a wasteful number, since it uses less digits than its factorization.

90291801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16535.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 90291801 is about 9502.1997979415. The cubic root of 90291801 is about 448.6242774929.

The spelling of 90291801 in words is "ninety million, two hundred ninety-one thousand, eight hundred one".