90640411 has 2 divisors, whose sum is σ = 90640412. Its totient is φ = 90640410.

The previous prime is 90640391. The next prime is 90640439. The reversal of 90640411 is 11404609.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90640411 - 2¹¹ = 90638363 is a prime.

It is not a weakly prime, because it can be changed into another prime (90640471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45320205 + 45320206.

It is an arithmetic number, because the mean of its divisors is an integer number (45320206).

Almost surely, 2^90640411 is an apocalyptic number.

90640411 is a deficient number, since it is larger than the sum of its proper divisors (1).

90640411 is an equidigital number, since it uses as much as digits as its factorization.

90640411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 90640411 is about 9520.5257732963. The cubic root of 90640411 is about 449.2009044655.

The spelling of 90640411 in words is "ninety million, six hundred forty thousand, four hundred eleven".