83387855 has 8 divisors (see below), whose sum is σ = 100115952. Its totient is φ = 66676608.

The previous prime is 83387849. The next prime is 83387911. The reversal of 83387855 is 55878338.

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 83387855 - 2¹⁸ = 83125711 is a prime.

It is a Duffinian number.

It is a congruent 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, 13319 + ... + 18551.

It is an arithmetic number, because the mean of its divisors is an integer number (12514494).

Almost surely, 2^83387855 is an apocalyptic number.

83387855 is a deficient number, since it is larger than the sum of its proper divisors (16728097).

83387855 is a wasteful number, since it uses less digits than its factorization.

83387855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8425.

The product of its digits is 806400, while the sum is 47.

The square root of 83387855 is about 9131.6950781331. The cubic root of 83387855 is about 436.8854697270.

It can be divided in two parts, 833 and 87855, that added together give a palindrome (88688).

The spelling of 83387855 in words is "eighty-three million, three hundred eighty-seven thousand, eight hundred fifty-five".