90473297 has 2 divisors, whose sum is σ = 90473298. Its totient is φ = 90473296.

The previous prime is 90473281. The next prime is 90473323. The reversal of 90473297 is 79237409.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88811776 + 1661521 = 9424^2 + 1289^2 .

It is an emirp because it is prime and its reverse (79237409) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90473297 - 2⁴ = 90473281 is a prime.

It is not a weakly prime, because it can be changed into another prime (90473267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45236648 + 45236649.

It is an arithmetic number, because the mean of its divisors is an integer number (45236649).

Almost surely, 2^90473297 is an apocalyptic number.

It is an amenable number.

90473297 is a deficient number, since it is larger than the sum of its proper divisors (1).

90473297 is an equidigital number, since it uses as much as digits as its factorization.

90473297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 90473297 is about 9511.7452131562. The cubic root of 90473297 is about 448.9246702758.

The spelling of 90473297 in words is "ninety million, four hundred seventy-three thousand, two hundred ninety-seven".