90802201 has 4 divisors (see below), whose sum is σ = 103773952. Its totient is φ = 77830452.

The previous prime is 90802177. The next prime is 90802211. The reversal of 90802201 is 10220809.

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.

It is not a de Polignac number, because 90802201 - 2¹⁵ = 90769433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90802211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6485865 + ... + 6485878.

It is an arithmetic number, because the mean of its divisors is an integer number (25943488).

Almost surely, 2^90802201 is an apocalyptic number.

It is an amenable number.

90802201 is a deficient number, since it is larger than the sum of its proper divisors (12971751).

90802201 is a wasteful number, since it uses less digits than its factorization.

90802201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12971750.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 90802201 is about 9529.0188896864. The cubic root of 90802201 is about 449.4680149624.

The spelling of 90802201 in words is "ninety million, eight hundred two thousand, two hundred one".