90419237 has 2 divisors, whose sum is σ = 90419238. Its totient is φ = 90419236.

The previous prime is 90419191. The next prime is 90419249. The reversal of 90419237 is 73291409.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77986561 + 12432676 = 8831^2 + 3526^2 .

It is a cyclic number.

It is not a de Polignac number, because 90419237 - 2¹⁶ = 90353701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90419197 and 90419206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90419267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45209618 + 45209619.

It is an arithmetic number, because the mean of its divisors is an integer number (45209619).

Almost surely, 2^90419237 is an apocalyptic number.

It is an amenable number.

90419237 is a deficient number, since it is larger than the sum of its proper divisors (1).

90419237 is an equidigital number, since it uses as much as digits as its factorization.

90419237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 90419237 is about 9508.9030387316. The cubic root of 90419237 is about 448.8352379835.

The spelling of 90419237 in words is "ninety million, four hundred nineteen thousand, two hundred thirty-seven".