90445733 has 4 divisors (see below), whose sum is σ = 103366560. Its totient is φ = 77524908.

The previous prime is 90445721. The next prime is 90445739. The reversal of 90445733 is 33754409.

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.

It is a cyclic number.

It is not a de Polignac number, because 90445733 - 2⁸ = 90445477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90445693 and 90445702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90445739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6460403 + ... + 6460416.

It is an arithmetic number, because the mean of its divisors is an integer number (25841640).

Almost surely, 2^90445733 is an apocalyptic number.

It is an amenable number.

90445733 is a deficient number, since it is larger than the sum of its proper divisors (12920827).

90445733 is a wasteful number, since it uses less digits than its factorization.

90445733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12920826.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 90445733 is about 9510.2961573234. The cubic root of 90445733 is about 448.8790751779.

The spelling of 90445733 in words is "ninety million, four hundred forty-five thousand, seven hundred thirty-three".