90625697 has 2 divisors, whose sum is σ = 90625698. Its totient is φ = 90625696.

The previous prime is 90625673. The next prime is 90625699. The reversal of 90625697 is 79652609.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48427681 + 42198016 = 6959^2 + 6496^2 .

It is a cyclic number.

It is not a de Polignac number, because 90625697 - 2¹⁰ = 90624673 is a prime.

Together with 90625699, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90625699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45312848 + 45312849.

It is an arithmetic number, because the mean of its divisors is an integer number (45312849).

Almost surely, 2^90625697 is an apocalyptic number.

It is an amenable number.

90625697 is a deficient number, since it is larger than the sum of its proper divisors (1).

90625697 is an equidigital number, since it uses as much as digits as its factorization.

90625697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 90625697 is about 9519.7529904930. The cubic root of 90625697 is about 449.1765963241.

The spelling of 90625697 in words is "ninety million, six hundred twenty-five thousand, six hundred ninety-seven".