90441751 has 4 divisors (see below), whose sum is σ = 95761872. Its totient is φ = 85121632.

The previous prime is 90441739. The next prime is 90441779. The reversal of 90441751 is 15714409.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90441751 - 2¹⁷ = 90310679 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 (90441721) 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, 2660035 + ... + 2660068.

It is an arithmetic number, because the mean of its divisors is an integer number (23940468).

Almost surely, 2^90441751 is an apocalyptic number.

90441751 is a deficient number, since it is larger than the sum of its proper divisors (5320121).

90441751 is a wasteful number, since it uses less digits than its factorization.

90441751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5320120.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 90441751 is about 9510.0868029687. The cubic root of 90441751 is about 448.8724875714.

The spelling of 90441751 in words is "ninety million, four hundred forty-one thousand, seven hundred fifty-one".