90488243 has 4 divisors (see below), whose sum is σ = 90957288. Its totient is φ = 90019200.

The previous prime is 90488213. The next prime is 90488267. The reversal of 90488243 is 34288409.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34288409 = 5021 ⋅6829.

It is a cyclic number.

It is not a de Polignac number, because 90488243 - 2¹⁴ = 90471859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90488197 and 90488206.

It is not an unprimeable number, because it can be changed into a prime (90488213) 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, 234233 + ... + 234618.

It is an arithmetic number, because the mean of its divisors is an integer number (22739322).

Almost surely, 2^90488243 is an apocalyptic number.

90488243 is a deficient number, since it is larger than the sum of its proper divisors (469045).

90488243 is a wasteful number, since it uses less digits than its factorization.

90488243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469044.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 90488243 is about 9512.5308409487. The cubic root of 90488243 is about 448.9493893877.

The spelling of 90488243 in words is "ninety million, four hundred eighty-eight thousand, two hundred forty-three".