90297373 has 2 divisors, whose sum is σ = 90297374. Its totient is φ = 90297372.

The previous prime is 90297371. The next prime is 90297413. The reversal of 90297373 is 37379209.

It is an a-pointer prime, because the next prime (90297413) can be obtained adding 90297373 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80946009 + 9351364 = 8997^2 + 3058^2 .

It is a cyclic number.

It is not a de Polignac number, because 90297373 - 2¹ = 90297371 is a prime.

It is a super-2 number, since 2×90297373² = 16307231141402258, which contains 22 as substring.

Together with 90297371, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90297371) 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, 45148686 + 45148687.

It is an arithmetic number, because the mean of its divisors is an integer number (45148687).

Almost surely, 2^90297373 is an apocalyptic number.

It is an amenable number.

90297373 is a deficient number, since it is larger than the sum of its proper divisors (1).

90297373 is an equidigital number, since it uses as much as digits as its factorization.

90297373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71442, while the sum is 40.

The square root of 90297373 is about 9502.4929886846. The cubic root of 90297373 is about 448.6335056584.

The spelling of 90297373 in words is "ninety million, two hundred ninety-seven thousand, three hundred seventy-three".