90402083 has 2 divisors, whose sum is σ = 90402084. Its totient is φ = 90402082.

The previous prime is 90402049. The next prime is 90402097. The reversal of 90402083 is 38020409.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90402083 - 2²⁶ = 23293219 is a prime.

It is a super-2 number, since 2×90402083² = 16345073221477778, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90402043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45201041 + 45201042.

It is an arithmetic number, because the mean of its divisors is an integer number (45201042).

Almost surely, 2^90402083 is an apocalyptic number.

90402083 is a deficient number, since it is larger than the sum of its proper divisors (1).

90402083 is an equidigital number, since it uses as much as digits as its factorization.

90402083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 90402083 is about 9508.0009991586. Note that the first 3 decimals coincide. The cubic root of 90402083 is about 448.8068524065.

The spelling of 90402083 in words is "ninety million, four hundred two thousand, eighty-three".