90884039 has 2 divisors, whose sum is σ = 90884040. Its totient is φ = 90884038.

The previous prime is 90884021. The next prime is 90884089. The reversal of 90884039 is 93048809.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90884039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90883987 and 90884005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90884009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45442019 + 45442020.

It is an arithmetic number, because the mean of its divisors is an integer number (45442020).

Almost surely, 2^90884039 is an apocalyptic number.

90884039 is a deficient number, since it is larger than the sum of its proper divisors (1).

90884039 is an equidigital number, since it uses as much as digits as its factorization.

90884039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 90884039 is about 9533.3120687409. The cubic root of 90884039 is about 449.6030062504.

The spelling of 90884039 in words is "ninety million, eight hundred eighty-four thousand, thirty-nine".