84623923847 has 8 divisors (see below), whose sum is σ = 86921180544. Its totient is φ = 82341633528.

The previous prime is 84623923819. The next prime is 84623923913. The reversal of 84623923847 is 74832932648.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84623923847 - 2²⁸ = 84355488391 is a prime.

It is a super-2 number, since 2×84623923847² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84623923792 and 84623923801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84623923247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3730133 + ... + 3752750.

It is an arithmetic number, because the mean of its divisors is an integer number (10865147568).

Almost surely, 2^84623923847 is an apocalyptic number.

84623923847 is a deficient number, since it is larger than the sum of its proper divisors (2297256697).

84623923847 is a wasteful number, since it uses less digits than its factorization.

84623923847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7483189.

The product of its digits is 13934592, while the sum is 56.

The spelling of 84623923847 in words is "eighty-four billion, six hundred twenty-three million, nine hundred twenty-three thousand, eight hundred forty-seven".