84866923 has 4 divisors (see below), whose sum is σ = 85134960. Its totient is φ = 84598888.

The previous prime is 84866911. The next prime is 84866927. The reversal of 84866923 is 32966848.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84866923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84866927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133543 + ... + 134176.

It is an arithmetic number, because the mean of its divisors is an integer number (21283740).

Almost surely, 2^84866923 is an apocalyptic number.

84866923 is a deficient number, since it is larger than the sum of its proper divisors (268037).

84866923 is a wasteful number, since it uses less digits than its factorization.

84866923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268036.

The product of its digits is 497664, while the sum is 46.

The square root of 84866923 is about 9212.3245166462. The cubic root of 84866923 is about 439.4533897556.

The spelling of 84866923 in words is "eighty-four million, eight hundred sixty-six thousand, nine hundred twenty-three".