90517003847 has 4 divisors (see below), whose sum is σ = 90518316120. Its totient is φ = 90515691576.

The previous prime is 90517003793. The next prime is 90517003877. The reversal of 90517003847 is 74830071509.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74830071509 = 234541 ⋅319049.

It is a cyclic number.

It is not a de Polignac number, because 90517003847 - 2⁶ = 90517003783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90517003798 and 90517003807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90517003877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 546572 + ... + 692657.

It is an arithmetic number, because the mean of its divisors is an integer number (22629579030).

Almost surely, 2^90517003847 is an apocalyptic number.

90517003847 is a deficient number, since it is larger than the sum of its proper divisors (1312273).

90517003847 is a wasteful number, since it uses less digits than its factorization.

90517003847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312272.

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 90517003847 in words is "ninety billion, five hundred seventeen million, three thousand, eight hundred forty-seven".