86774281 has 4 divisors (see below), whose sum is σ = 94662864. Its totient is φ = 78885700.

The previous prime is 86774279. The next prime is 86774291. The reversal of 86774281 is 18247768.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86774281 - 2¹ = 86774279 is a prime.

It is a super-2 number, since 2×86774281² = 15059551686133922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86774231) 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, 3944275 + ... + 3944296.

It is an arithmetic number, because the mean of its divisors is an integer number (23665716).

Almost surely, 2^86774281 is an apocalyptic number.

It is an amenable number.

86774281 is a deficient number, since it is larger than the sum of its proper divisors (7888583).

86774281 is a wasteful number, since it uses less digits than its factorization.

86774281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7888582.

The product of its digits is 150528, while the sum is 43.

The square root of 86774281 is about 9315.2713862775. The cubic root of 86774281 is about 442.7212227597.

The spelling of 86774281 in words is "eighty-six million, seven hundred seventy-four thousand, two hundred eighty-one".