90033427 has 4 divisors (see below), whose sum is σ = 98218296. Its totient is φ = 81848560.

The previous prime is 90033413. The next prime is 90033491. The reversal of 90033427 is 72433009.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90033427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90033395 and 90033404.

It is not an unprimeable number, because it can be changed into a prime (90033527) 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, 4092418 + ... + 4092439.

It is an arithmetic number, because the mean of its divisors is an integer number (24554574).

Almost surely, 2^90033427 is an apocalyptic number.

90033427 is a deficient number, since it is larger than the sum of its proper divisors (8184869).

90033427 is a wasteful number, since it uses less digits than its factorization.

90033427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8184868.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 90033427 is about 9488.5945745405. The cubic root of 90033427 is about 448.1959492389.

The spelling of 90033427 in words is "ninety million, thirty-three thousand, four hundred twenty-seven".