90527729 has 2 divisors, whose sum is σ = 90527730. Its totient is φ = 90527728.

The previous prime is 90527711. The next prime is 90527741. The reversal of 90527729 is 92772509.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90250000 + 277729 = 9500^2 + 527^2 .

It is a cyclic number.

It is not a de Polignac number, because 90527729 - 2¹⁶ = 90462193 is a prime.

It is not a weakly prime, because it can be changed into another prime (90527929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45263864 + 45263865.

It is an arithmetic number, because the mean of its divisors is an integer number (45263865).

Almost surely, 2^90527729 is an apocalyptic number.

It is an amenable number.

90527729 is a deficient number, since it is larger than the sum of its proper divisors (1).

90527729 is an equidigital number, since it uses as much as digits as its factorization.

90527729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 90527729 is about 9514.6060874847. The cubic root of 90527729 is about 449.0146819868.

The spelling of 90527729 in words is "ninety million, five hundred twenty-seven thousand, seven hundred twenty-nine".