90625397 has 2 divisors, whose sum is σ = 90625398. Its totient is φ = 90625396.

The previous prime is 90625349. The next prime is 90625417. The reversal of 90625397 is 79352609.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64144081 + 26481316 = 8009^2 + 5146^2 .

It is a cyclic number.

It is not a de Polignac number, because 90625397 - 2⁶ = 90625333 is a prime.

It is a super-3 number, since 3×90625397³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90625097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45312698 + 45312699.

It is an arithmetic number, because the mean of its divisors is an integer number (45312699).

Almost surely, 2^90625397 is an apocalyptic number.

It is an amenable number.

90625397 is a deficient number, since it is larger than the sum of its proper divisors (1).

90625397 is an equidigital number, since it uses as much as digits as its factorization.

90625397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 41.

The square root of 90625397 is about 9519.7372337686. The cubic root of 90625397 is about 449.1761006842.

The spelling of 90625397 in words is "ninety million, six hundred twenty-five thousand, three hundred ninety-seven".