90329497 has 2 divisors, whose sum is σ = 90329498. Its totient is φ = 90329496.

The previous prime is 90329489. The next prime is 90329501. The reversal of 90329497 is 79492309.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90326016 + 3481 = 9504^2 + 59^2 .

It is a cyclic number.

It is not a de Polignac number, because 90329497 - 2³ = 90329489 is a prime.

It is not a weakly prime, because it can be changed into another prime (90329297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45164748 + 45164749.

It is an arithmetic number, because the mean of its divisors is an integer number (45164749).

Almost surely, 2^90329497 is an apocalyptic number.

It is an amenable number.

90329497 is a deficient number, since it is larger than the sum of its proper divisors (1).

90329497 is an equidigital number, since it uses as much as digits as its factorization.

90329497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 90329497 is about 9504.1831316531. The cubic root of 90329497 is about 448.6867009824.

The spelling of 90329497 in words is "ninety million, three hundred twenty-nine thousand, four hundred ninety-seven".