90360901 has 4 divisors (see below), whose sum is σ = 90967500. Its totient is φ = 89754304.

The previous prime is 90360887. The next prime is 90360913. The reversal of 90360901 is 10906309.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10906309 = 257 ⋅42437.

It can be written as a sum of positive squares in 2 ways, for example, as 9828225 + 80532676 = 3135^2 + 8974^2 .

It is a cyclic number.

It is not a de Polignac number, because 90360901 - 2⁵ = 90360869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90360901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90360971) 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, 303076 + ... + 303373.

It is an arithmetic number, because the mean of its divisors is an integer number (22741875).

Almost surely, 2^90360901 is an apocalyptic number.

It is an amenable number.

90360901 is a deficient number, since it is larger than the sum of its proper divisors (606599).

90360901 is a wasteful number, since it uses less digits than its factorization.

90360901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606598.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 90360901 is about 9505.8351027145. The cubic root of 90360901 is about 448.7386918419.

The spelling of 90360901 in words is "ninety million, three hundred sixty thousand, nine hundred one".