84436868 has 6 divisors (see below), whose sum is σ = 147764526. Its totient is φ = 42218432.

The previous prime is 84436867. The next prime is 84436873. The reversal of 84436868 is 86863448.

It can be written as a sum of positive squares in only one way, i.e., 72726784 + 11710084 = 8528^2 + 3422^2 .

It is not an unprimeable number, because it can be changed into a prime (84436867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10554605 + ... + 10554612.

It is an arithmetic number, because the mean of its divisors is an integer number (24627421).

Almost surely, 2^84436868 is an apocalyptic number.

It is an amenable number.

84436868 is a deficient number, since it is larger than the sum of its proper divisors (63327658).

84436868 is a wasteful number, since it uses less digits than its factorization.

84436868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21109221 (or 21109219 counting only the distinct ones).

The product of its digits is 884736, while the sum is 47.

The square root of 84436868 is about 9188.9535856919. The cubic root of 84436868 is about 438.7098363951.

The spelling of 84436868 in words is "eighty-four million, four hundred thirty-six thousand, eight hundred sixty-eight".