84772418 has 8 divisors (see below), whose sum is σ = 128900748. Its totient is φ = 41805504.

The previous prime is 84772417. The next prime is 84772427. The reversal of 84772418 is 81427748.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 78978769 + 5793649 = 8887^2 + 2407^2 .

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

It is not an unprimeable number, because it can be changed into a prime (84772417) 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, 290171 + ... + 290462.

Almost surely, 2^84772418 is an apocalyptic number.

84772418 is a deficient number, since it is larger than the sum of its proper divisors (44128330).

84772418 is a wasteful number, since it uses less digits than its factorization.

84772418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580708.

The product of its digits is 100352, while the sum is 41.

The square root of 84772418 is about 9207.1938178796. The cubic root of 84772418 is about 439.2902089138.

The spelling of 84772418 in words is "eighty-four million, seven hundred seventy-two thousand, four hundred eighteen".