83684545 has 8 divisors (see below), whose sum is σ = 114767424. Its totient is φ = 57383664.

The previous prime is 83684539. The next prime is 83684551. The reversal of 83684545 is 54548638.

It is an interprime number because it is at equal distance from previous prime (83684539) and next prime (83684551).

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

It is a cyclic number.

It is not a de Polignac number, because 83684545 - 2¹³ = 83676353 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1195459 + ... + 1195528.

It is an arithmetic number, because the mean of its divisors is an integer number (14345928).

Almost surely, 2^83684545 is an apocalyptic number.

It is an amenable number.

83684545 is a deficient number, since it is larger than the sum of its proper divisors (31082879).

83684545 is a wasteful number, since it uses less digits than its factorization.

83684545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2390999.

The product of its digits is 460800, while the sum is 43.

The square root of 83684545 is about 9147.9257211676. The cubic root of 83684545 is about 437.4029956362.

The spelling of 83684545 in words is "eighty-three million, six hundred eighty-four thousand, five hundred forty-five".