90802739 has 2 divisors, whose sum is σ = 90802740. Its totient is φ = 90802738.

The previous prime is 90802721. The next prime is 90802757. The reversal of 90802739 is 93720809.

It is a balanced prime because it is at equal distance from previous prime (90802721) and next prime (90802757).

It is a cyclic number.

It is not a de Polignac number, because 90802739 - 2⁸ = 90802483 is a prime.

It is not a weakly prime, because it can be changed into another prime (90802139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45401369 + 45401370.

It is an arithmetic number, because the mean of its divisors is an integer number (45401370).

Almost surely, 2^90802739 is an apocalyptic number.

90802739 is a deficient number, since it is larger than the sum of its proper divisors (1).

90802739 is an equidigital number, since it uses as much as digits as its factorization.

90802739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 90802739 is about 9529.0471192035. The cubic root of 90802739 is about 449.4689026549.

The spelling of 90802739 in words is "ninety million, eight hundred two thousand, seven hundred thirty-nine".