84338815 has 64 divisors (see below), whose sum is σ = 126489600. Its totient is φ = 53665920.

The previous prime is 84338767. The next prime is 84338831. The reversal of 84338815 is 51883348.

It is not a de Polignac number, because 84338815 - 2¹¹ = 84336767 is a prime.

It is a super-2 number, since 2×84338815² = 14226071431208450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2908221 + ... + 2908249.

It is an arithmetic number, because the mean of its divisors is an integer number (1976400).

Almost surely, 2^84338815 is an apocalyptic number.

84338815 is a deficient number, since it is larger than the sum of its proper divisors (42150785).

84338815 is a wasteful number, since it uses less digits than its factorization.

84338815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109 (or 87 counting only the distinct ones).

The product of its digits is 92160, while the sum is 40.

The square root of 84338815 is about 9183.6166622960. The cubic root of 84338815 is about 438.5399521626.

The spelling of 84338815 in words is "eighty-four million, three hundred thirty-eight thousand, eight hundred fifteen".