90337433 has 2 divisors, whose sum is σ = 90337434. Its totient is φ = 90337432.

The previous prime is 90337409. The next prime is 90337447. The reversal of 90337433 is 33473309.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86620249 + 3717184 = 9307^2 + 1928^2 .

It is an emirp because it is prime and its reverse (33473309) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90337433 - 2¹⁰ = 90336409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90337433.

It is not a weakly prime, because it can be changed into another prime (90337483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45168716 + 45168717.

It is an arithmetic number, because the mean of its divisors is an integer number (45168717).

Almost surely, 2^90337433 is an apocalyptic number.

It is an amenable number.

90337433 is a deficient number, since it is larger than the sum of its proper divisors (1).

90337433 is an equidigital number, since it uses as much as digits as its factorization.

90337433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 32.

The square root of 90337433 is about 9504.6006228563. The cubic root of 90337433 is about 448.6998405566.

The spelling of 90337433 in words is "ninety million, three hundred thirty-seven thousand, four hundred thirty-three".