83486687 has 4 divisors (see below), whose sum is σ = 83511480. Its totient is φ = 83461896.

The previous prime is 83486671. The next prime is 83486719. The reversal of 83486687 is 78668438.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 83486687 - 2⁴ = 83486671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83486657) 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, 6368 + ... + 14405.

It is an arithmetic number, because the mean of its divisors is an integer number (20877870).

Almost surely, 2^83486687 is an apocalyptic number.

83486687 is a deficient number, since it is larger than the sum of its proper divisors (24793).

83486687 is a wasteful number, since it uses less digits than its factorization.

83486687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24792.

The product of its digits is 1548288, while the sum is 50.

The square root of 83486687 is about 9137.1049572608. The cubic root of 83486687 is about 437.0580017164.

The spelling of 83486687 in words is "eighty-three million, four hundred eighty-six thousand, six hundred eighty-seven".