83965887 has 12 divisors (see below), whose sum is σ = 125196864. Its totient is φ = 54171360.

The previous prime is 83965879. The next prime is 83965901. The reversal of 83965887 is 78856938.

It is a happy number.

It is not a de Polignac number, because 83965887 - 2³ = 83965879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83965837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150198 + ... + 150755.

It is an arithmetic number, because the mean of its divisors is an integer number (10433072).

Almost surely, 2^83965887 is an apocalyptic number.

83965887 is a deficient number, since it is larger than the sum of its proper divisors (41230977).

83965887 is a wasteful number, since it uses less digits than its factorization.

83965887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300990 (or 300987 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 83965887 is about 9163.2901842079. The cubic root of 83965887 is about 437.8926208281.

The spelling of 83965887 in words is "eighty-three million, nine hundred sixty-five thousand, eight hundred eighty-seven".