90587401 has 4 divisors (see below), whose sum is σ = 90610704. Its totient is φ = 90564100.

The previous prime is 90587353. The next prime is 90587447. The reversal of 90587401 is 10478509.

It is a happy number.

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: 10478509 = 47 ⋅222947.

It is a cyclic number.

It is not a de Polignac number, because 90587401 - 2²¹ = 88490249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90587461) 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, 4255 + ... + 14116.

It is an arithmetic number, because the mean of its divisors is an integer number (22652676).

Almost surely, 2^90587401 is an apocalyptic number.

It is an amenable number.

90587401 is a deficient number, since it is larger than the sum of its proper divisors (23303).

90587401 is a wasteful number, since it uses less digits than its factorization.

90587401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23302.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 90587401 is about 9517.7413812312. The cubic root of 90587401 is about 449.1133173975.

The spelling of 90587401 in words is "ninety million, five hundred eighty-seven thousand, four hundred one".