86666434 has 8 divisors (see below), whose sum is σ = 131830848. Its totient is φ = 42722820.

The previous prime is 86666423. The next prime is 86666473. The reversal of 86666434 is 43466668.

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

It is a super-2 number, since 2×86666434² = 15022141564552712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305022 + ... + 305305.

It is an arithmetic number, because the mean of its divisors is an integer number (16478856).

Almost surely, 2^86666434 is an apocalyptic number.

86666434 is a deficient number, since it is larger than the sum of its proper divisors (45164414).

86666434 is a wasteful number, since it uses less digits than its factorization.

86666434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610400.

The product of its digits is 497664, while the sum is 43.

The square root of 86666434 is about 9309.4808662997. The cubic root of 86666434 is about 442.5377354053.

The spelling of 86666434 in words is "eighty-six million, six hundred sixty-six thousand, four hundred thirty-four".