90411439 has 2 divisors, whose sum is σ = 90411440. Its totient is φ = 90411438.

The previous prime is 90411421. The next prime is 90411487. The reversal of 90411439 is 93411409.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90411439 - 2⁷ = 90411311 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90411439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90414439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45205719 + 45205720.

It is an arithmetic number, because the mean of its divisors is an integer number (45205720).

Almost surely, 2^90411439 is an apocalyptic number.

90411439 is a deficient number, since it is larger than the sum of its proper divisors (1).

90411439 is an equidigital number, since it uses as much as digits as its factorization.

90411439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 90411439 is about 9508.4929931088. The cubic root of 90411439 is about 448.8223346901.

The spelling of 90411439 in words is "ninety million, four hundred eleven thousand, four hundred thirty-nine".