90362081 has 4 divisors (see below), whose sum is σ = 95118000. Its totient is φ = 85606164.

The previous prime is 90362071. The next prime is 90362113. The reversal of 90362081 is 18026309.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18026309 = 7 ⋅2575187.

It is a cyclic number.

It is not a de Polignac number, because 90362081 - 2¹⁰ = 90361057 is a prime.

It is a super-3 number, since 3×90362081³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90362071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2377931 + ... + 2377968.

It is an arithmetic number, because the mean of its divisors is an integer number (23779500).

Almost surely, 2^90362081 is an apocalyptic number.

It is an amenable number.

90362081 is a deficient number, since it is larger than the sum of its proper divisors (4755919).

90362081 is a wasteful number, since it uses less digits than its factorization.

90362081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4755918.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 90362081 is about 9505.8971696521. The cubic root of 90362081 is about 448.7406451548.

The spelling of 90362081 in words is "ninety million, three hundred sixty-two thousand, eighty-one".