90253766 has 8 divisors (see below), whose sum is σ = 135429744. Its totient is φ = 45110520.

The previous prime is 90253759. The next prime is 90253783. The reversal of 90253766 is 66735209.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596 + ... + 13448.

It is an arithmetic number, because the mean of its divisors is an integer number (16928718).

Almost surely, 2^90253766 is an apocalyptic number.

90253766 is a deficient number, since it is larger than the sum of its proper divisors (45175978).

90253766 is a wasteful number, since it uses less digits than its factorization.

90253766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16366.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 90253766 is about 9500.1982084586. The cubic root of 90253766 is about 448.5612750175.

It can be divided in two parts, 90253 and 766, that added together give a palindrome (91019).

The spelling of 90253766 in words is "ninety million, two hundred fifty-three thousand, seven hundred sixty-six".