90583237 has 2 divisors, whose sum is σ = 90583238. Its totient is φ = 90583236.

The previous prime is 90583193. The next prime is 90583243. The reversal of 90583237 is 73238509.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47141956 + 43441281 = 6866^2 + 6591^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90583237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90583196 and 90583205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90583267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45291618 + 45291619.

It is an arithmetic number, because the mean of its divisors is an integer number (45291619).

Almost surely, 2^90583237 is an apocalyptic number.

It is an amenable number.

90583237 is a deficient number, since it is larger than the sum of its proper divisors (1).

90583237 is an equidigital number, since it uses as much as digits as its factorization.

90583237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 90583237 is about 9517.5226293401. The cubic root of 90583237 is about 449.1064358794.

The spelling of 90583237 in words is "ninety million, five hundred eighty-three thousand, two hundred thirty-seven".