90840527 has 2 divisors, whose sum is σ = 90840528. Its totient is φ = 90840526.

The previous prime is 90840523. The next prime is 90840559. The reversal of 90840527 is 72504809.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90840527 - 2² = 90840523 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90840521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45420263 + 45420264.

It is an arithmetic number, because the mean of its divisors is an integer number (45420264).

Almost surely, 2^90840527 is an apocalyptic number.

90840527 is a deficient number, since it is larger than the sum of its proper divisors (1).

90840527 is an equidigital number, since it uses as much as digits as its factorization.

90840527 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 90840527 is about 9531.0296925358. The cubic root of 90840527 is about 449.5312435621.

The spelling of 90840527 in words is "ninety million, eight hundred forty thousand, five hundred twenty-seven".