90201477 has 4 divisors (see below), whose sum is σ = 120268640. Its totient is φ = 60134316.

The previous prime is 90201467. The next prime is 90201499. The reversal of 90201477 is 77410209.

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 90201477 - 2¹⁵ = 90168709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90201427) 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, 15033577 + ... + 15033582.

It is an arithmetic number, because the mean of its divisors is an integer number (30067160).

Almost surely, 2^90201477 is an apocalyptic number.

It is an amenable number.

90201477 is a deficient number, since it is larger than the sum of its proper divisors (30067163).

90201477 is a wasteful number, since it uses less digits than its factorization.

90201477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30067162.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 90201477 is about 9497.4458145335. The cubic root of 90201477 is about 448.4746328286.

The spelling of 90201477 in words is "ninety million, two hundred one thousand, four hundred seventy-seven".