90175963 has 2 divisors, whose sum is σ = 90175964. Its totient is φ = 90175962.

The previous prime is 90175961. The next prime is 90175979. The reversal of 90175963 is 36957109.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90175963 - 2¹ = 90175961 is a prime.

Together with 90175961, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (90175961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45087981 + 45087982.

It is an arithmetic number, because the mean of its divisors is an integer number (45087982).

Almost surely, 2^90175963 is an apocalyptic number.

90175963 is a deficient number, since it is larger than the sum of its proper divisors (1).

90175963 is an equidigital number, since it uses as much as digits as its factorization.

90175963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 90175963 is about 9496.1025162958. The cubic root of 90175963 is about 448.4323443090.

The spelling of 90175963 in words is "ninety million, one hundred seventy-five thousand, nine hundred sixty-three".