86377855 has 4 divisors (see below), whose sum is σ = 103653432. Its totient is φ = 69102280.

The previous prime is 86377853. The next prime is 86377861. The reversal of 86377855 is 55877368.

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

It is not a de Polignac number, because 86377855 - 2¹ = 86377853 is a prime.

It is a super-2 number, since 2×86377855² = 14922267668802050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86377799 and 86377808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86377853) 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, 8637781 + ... + 8637790.

It is an arithmetic number, because the mean of its divisors is an integer number (25913358).

Almost surely, 2^86377855 is an apocalyptic number.

86377855 is a deficient number, since it is larger than the sum of its proper divisors (17275577).

86377855 is a wasteful number, since it uses less digits than its factorization.

86377855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17275576.

The product of its digits is 1411200, while the sum is 49.

The square root of 86377855 is about 9293.9687432227. The cubic root of 86377855 is about 442.0460067588.

The spelling of 86377855 in words is "eighty-six million, three hundred seventy-seven thousand, eight hundred fifty-five".