90191411 has 2 divisors, whose sum is σ = 90191412. Its totient is φ = 90191410.

The previous prime is 90191407. The next prime is 90191417. The reversal of 90191411 is 11419109.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90191411 - 2² = 90191407 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (90191417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45095705 + 45095706.

It is an arithmetic number, because the mean of its divisors is an integer number (45095706).

Almost surely, 2^90191411 is an apocalyptic number.

90191411 is a deficient number, since it is larger than the sum of its proper divisors (1).

90191411 is an equidigital number, since it uses as much as digits as its factorization.

90191411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 26.

The square root of 90191411 is about 9496.9158677962. The cubic root of 90191411 is about 448.4579497552.

The spelling of 90191411 in words is "ninety million, one hundred ninety-one thousand, four hundred eleven".