83887071 has 8 divisors (see below), whose sum is σ = 117736320. Its totient is φ = 52981272.

The previous prime is 83887043. The next prime is 83887073. The reversal of 83887071 is 17078838.

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

It is not a de Polignac number, because 83887071 - 2¹⁴ = 83870687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83887073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 735795 + ... + 735908.

It is an arithmetic number, because the mean of its divisors is an integer number (14717040).

Almost surely, 2^83887071 is an apocalyptic number.

83887071 is a deficient number, since it is larger than the sum of its proper divisors (33849249).

83887071 is a wasteful number, since it uses less digits than its factorization.

83887071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471725.

The product of its (nonzero) digits is 75264, while the sum is 42.

The square root of 83887071 is about 9158.9885358592. The cubic root of 83887071 is about 437.7555661646.

The spelling of 83887071 in words is "eighty-three million, eight hundred eighty-seven thousand, seventy-one".