90834253 has 4 divisors (see below), whose sum is σ = 90912348. Its totient is φ = 90756160.

The previous prime is 90834251. The next prime is 90834257. The reversal of 90834253 is 35243809.

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: 35243809 = 67 ⋅526027.

It can be written as a sum of positive squares in 2 ways, for example, as 72284004 + 18550249 = 8502^2 + 4307^2 .

It is a cyclic number.

It is not a de Polignac number, because 90834253 - 2¹ = 90834251 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 (90834251) 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, 37276 + ... + 39637.

It is an arithmetic number, because the mean of its divisors is an integer number (22728087).

Almost surely, 2^90834253 is an apocalyptic number.

It is an amenable number.

90834253 is a deficient number, since it is larger than the sum of its proper divisors (78095).

90834253 is a wasteful number, since it uses less digits than its factorization.

90834253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78094.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 90834253 is about 9530.7005513761. The cubic root of 90834253 is about 449.5208942021.

The spelling of 90834253 in words is "ninety million, eight hundred thirty-four thousand, two hundred fifty-three".