73861689 has 8 divisors (see below), whose sum is σ = 107435232. Its totient is φ = 44764640.

The previous prime is 73861643. The next prime is 73861691. The reversal of 73861689 is 98616837.

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 73861689 - 2¹¹ = 73859641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73861639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1119084 + ... + 1119149.

It is an arithmetic number, because the mean of its divisors is an integer number (13429404).

Almost surely, 2^73861689 is an apocalyptic number.

It is an amenable number.

73861689 is a deficient number, since it is larger than the sum of its proper divisors (33573543).

73861689 is a wasteful number, since it uses less digits than its factorization.

73861689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238247.

The product of its digits is 435456, while the sum is 48.

The square root of 73861689 is about 8594.2823435119. The cubic root of 73861689 is about 419.5719164332.

The spelling of 73861689 in words is "seventy-three million, eight hundred sixty-one thousand, six hundred eighty-nine".