90054719 has 2 divisors, whose sum is σ = 90054720. Its totient is φ = 90054718.

The previous prime is 90054691. The next prime is 90054749. The reversal of 90054719 is 91745009.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90054719 - 2⁸ = 90054463 is a prime.

It is a super-2 number, since 2×90054719² = 16219704828337922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90054749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45027359 + 45027360.

It is an arithmetic number, because the mean of its divisors is an integer number (45027360).

Almost surely, 2^90054719 is an apocalyptic number.

90054719 is a deficient number, since it is larger than the sum of its proper divisors (1).

90054719 is an equidigital number, since it uses as much as digits as its factorization.

90054719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 90054719 is about 9489.7164868082. The cubic root of 90054719 is about 448.2312777322.

The spelling of 90054719 in words is "ninety million, fifty-four thousand, seven hundred nineteen".