86645387 has 8 divisors (see below), whose sum is σ = 89041920. Its totient is φ = 84266280.

The previous prime is 86645371. The next prime is 86645399. The reversal of 86645387 is 78354668.

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 86645387 - 2⁴ = 86645371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86645687) 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, 6062 + ... + 14492.

It is an arithmetic number, because the mean of its divisors is an integer number (11130240).

Almost surely, 2^86645387 is an apocalyptic number.

86645387 is a deficient number, since it is larger than the sum of its proper divisors (2396533).

86645387 is a wasteful number, since it uses less digits than its factorization.

86645387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8713.

The product of its digits is 967680, while the sum is 47.

The square root of 86645387 is about 9308.3503909125. The cubic root of 86645387 is about 442.5019089792.

The spelling of 86645387 in words is "eighty-six million, six hundred forty-five thousand, three hundred eighty-seven".