90498847 has 2 divisors, whose sum is σ = 90498848. Its totient is φ = 90498846.

The previous prime is 90498833. The next prime is 90498851. The reversal of 90498847 is 74889409.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90498847 - 2²³ = 82110239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90498847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90498857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45249423 + 45249424.

It is an arithmetic number, because the mean of its divisors is an integer number (45249424).

Almost surely, 2^90498847 is an apocalyptic number.

90498847 is a deficient number, since it is larger than the sum of its proper divisors (1).

90498847 is an equidigital number, since it uses as much as digits as its factorization.

90498847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 90498847 is about 9513.0881946926. The cubic root of 90498847 is about 448.9669256378.

The spelling of 90498847 in words is "ninety million, four hundred ninety-eight thousand, eight hundred forty-seven".