90369751 has 2 divisors, whose sum is σ = 90369752. Its totient is φ = 90369750.

The previous prime is 90369709. The next prime is 90369791. The reversal of 90369751 is 15796309.

It is an a-pointer prime, because the next prime (90369791) can be obtained adding 90369751 to its sum of digits (40).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90369751 - 2⁹ = 90369239 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90369701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45184875 + 45184876.

It is an arithmetic number, because the mean of its divisors is an integer number (45184876).

Almost surely, 2^90369751 is an apocalyptic number.

90369751 is a deficient number, since it is larger than the sum of its proper divisors (1).

90369751 is an equidigital number, since it uses as much as digits as its factorization.

90369751 is an odious number, because the sum of its binary digits is odd.

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

The square root of 90369751 is about 9506.3005948686. The cubic root of 90369751 is about 448.7533412745.

The spelling of 90369751 in words is "ninety million, three hundred sixty-nine thousand, seven hundred fifty-one".