90493037 has 2 divisors, whose sum is σ = 90493038. Its totient is φ = 90493036.

The previous prime is 90493033. The next prime is 90493049. The reversal of 90493037 is 73039409.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87871876 + 2621161 = 9374^2 + 1619^2 .

It is a cyclic number.

It is not a de Polignac number, because 90493037 - 2² = 90493033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90492988 and 90493006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90493033) 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 as a sum of consecutive naturals, namely, 45246518 + 45246519.

It is an arithmetic number, because the mean of its divisors is an integer number (45246519).

Almost surely, 2^90493037 is an apocalyptic number.

It is an amenable number.

90493037 is a deficient number, since it is larger than the sum of its proper divisors (1).

90493037 is an equidigital number, since it uses as much as digits as its factorization.

90493037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 90493037 is about 9512.7828210256. The cubic root of 90493037 is about 448.9573175830.

The spelling of 90493037 in words is "ninety million, four hundred ninety-three thousand, thirty-seven".