90416537 has 2 divisors, whose sum is σ = 90416538. Its totient is φ = 90416536.

The previous prime is 90416533. The next prime is 90416539. The reversal of 90416537 is 73561409.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60155536 + 30261001 = 7756^2 + 5501^2 .

It is a cyclic number.

It is not a de Polignac number, because 90416537 - 2² = 90416533 is a prime.

Together with 90416539, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 90416497 and 90416506.

It is not a weakly prime, because it can be changed into another prime (90416533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45208268 + 45208269.

It is an arithmetic number, because the mean of its divisors is an integer number (45208269).

Almost surely, 2^90416537 is an apocalyptic number.

It is an amenable number.

90416537 is a deficient number, since it is larger than the sum of its proper divisors (1).

90416537 is an equidigital number, since it uses as much as digits as its factorization.

90416537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 90416537 is about 9508.7610654596. The cubic root of 90416537 is about 448.8307703973.

The spelling of 90416537 in words is "ninety million, four hundred sixteen thousand, five hundred thirty-seven".