86774505 has 8 divisors (see below), whose sum is σ = 138839232. Its totient is φ = 46279728.

The previous prime is 86774497. The next prime is 86774507. The reversal of 86774505 is 50547768.

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

It is not a de Polignac number, because 86774505 - 2³ = 86774497 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86774507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2892469 + ... + 2892498.

It is an arithmetic number, because the mean of its divisors is an integer number (17354904).

Almost surely, 2^86774505 is an apocalyptic number.

It is an amenable number.

86774505 is a deficient number, since it is larger than the sum of its proper divisors (52064727).

86774505 is a wasteful number, since it uses less digits than its factorization.

86774505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5784975.

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 86774505 is about 9315.2834095373. The cubic root of 86774505 is about 442.7216037077.

The spelling of 86774505 in words is "eighty-six million, seven hundred seventy-four thousand, five hundred five".