84866456 has 16 divisors (see below), whose sum is σ = 163425840. Its totient is φ = 41286240.

The previous prime is 84866449. The next prime is 84866459. The reversal of 84866456 is 65466848.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 84866456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84866459) 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, 143060 + ... + 143651.

It is an arithmetic number, because the mean of its divisors is an integer number (10214115).

Almost surely, 2^84866456 is an apocalyptic number.

It is an amenable number.

84866456 is a deficient number, since it is larger than the sum of its proper divisors (78559384).

84866456 is a wasteful number, since it uses less digits than its factorization.

84866456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286754 (or 286750 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 47.

The square root of 84866456 is about 9212.2991701312. The cubic root of 84866456 is about 439.4525836893.

The spelling of 84866456 in words is "eighty-four million, eight hundred sixty-six thousand, four hundred fifty-six".