90832789 has 2 divisors, whose sum is σ = 90832790. Its totient is φ = 90832788.

The previous prime is 90832783. The next prime is 90832799. The reversal of 90832789 is 98723809.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79388100 + 11444689 = 8910^2 + 3383^2 .

It is a cyclic number.

It is not a de Polignac number, because 90832789 - 2¹¹ = 90830741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90832783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45416394 + 45416395.

It is an arithmetic number, because the mean of its divisors is an integer number (45416395).

Almost surely, 2^90832789 is an apocalyptic number.

It is an amenable number.

90832789 is a deficient number, since it is larger than the sum of its proper divisors (1).

90832789 is an equidigital number, since it uses as much as digits as its factorization.

90832789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 90832789 is about 9530.6237466390. The cubic root of 90832789 is about 449.5184791729.

The spelling of 90832789 in words is "ninety million, eight hundred thirty-two thousand, seven hundred eighty-nine".