90227651 has 2 divisors, whose sum is σ = 90227652. Its totient is φ = 90227650.

The previous prime is 90227647. The next prime is 90227659. The reversal of 90227651 is 15672209.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90227651 - 2² = 90227647 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90227659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45113825 + 45113826.

It is an arithmetic number, because the mean of its divisors is an integer number (45113826).

Almost surely, 2^90227651 is an apocalyptic number.

90227651 is a deficient number, since it is larger than the sum of its proper divisors (1).

90227651 is an equidigital number, since it uses as much as digits as its factorization.

90227651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 90227651 is about 9498.8236640123. The cubic root of 90227651 is about 448.5180069884.

The spelling of 90227651 in words is "ninety million, two hundred twenty-seven thousand, six hundred fifty-one".