84864694 has 4 divisors (see below), whose sum is σ = 127297044. Its totient is φ = 42432346.

The previous prime is 84864691. The next prime is 84864707. The reversal of 84864694 is 49646848.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84864691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21216172 + ... + 21216175.

It is an arithmetic number, because the mean of its divisors is an integer number (31824261).

Almost surely, 2^84864694 is an apocalyptic number.

84864694 is a deficient number, since it is larger than the sum of its proper divisors (42432350).

84864694 is a wasteful number, since it uses less digits than its factorization.

84864694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42432349.

The product of its digits is 1327104, while the sum is 49.

The square root of 84864694 is about 9212.2035366138. The cubic root of 84864694 is about 439.4495423588.

It can be divided in two parts, 84864 and 694, that added together give a palindrome (85558).

The spelling of 84864694 in words is "eighty-four million, eight hundred sixty-four thousand, six hundred ninety-four".