864340415 has 8 divisors (see below), whose sum is σ = 1054212288. Its totient is φ = 680136480.

The previous prime is 864340363. The next prime is 864340429. The reversal of 864340415 is 514043468.

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

It is not a de Polignac number, because 864340415 - 2⁸ = 864340159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1416647 + ... + 1417256.

It is an arithmetic number, because the mean of its divisors is an integer number (131776536).

Almost surely, 2^864340415 is an apocalyptic number.

864340415 is a deficient number, since it is larger than the sum of its proper divisors (189871873).

864340415 is a wasteful number, since it uses less digits than its factorization.

864340415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2833969.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 864340415 is about 29399.6669198819. Note that the first 3 decimals coincide. The cubic root of 864340415 is about 952.5657015919.

The spelling of 864340415 in words is "eight hundred sixty-four million, three hundred forty thousand, four hundred fifteen".