84847090001 has 4 divisors (see below), whose sum is σ = 84848422500. Its totient is φ = 84845757504.

The previous prime is 84847089973. The next prime is 84847090007. The reversal of 84847090001 is 10009074848.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54673662976 + 30173427025 = 233824^2 + 173705^2 .

It is a cyclic number.

It is not a de Polignac number, because 84847090001 - 2³⁰ = 83773348177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84847090007) 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, 565676 + ... + 699773.

It is an arithmetic number, because the mean of its divisors is an integer number (21212105625).

Almost surely, 2^84847090001 is an apocalyptic number.

It is an amenable number.

84847090001 is a deficient number, since it is larger than the sum of its proper divisors (1332499).

84847090001 is a wasteful number, since it uses less digits than its factorization.

84847090001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332498.

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 84847090001 in words is "eighty-four billion, eight hundred forty-seven million, ninety thousand, one".