864080421 has 8 divisors (see below), whose sum is σ = 1154608224. Its totient is φ = 574803120.

The previous prime is 864080419. The next prime is 864080431. The reversal of 864080421 is 124080468.

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

It is not a de Polignac number, because 864080421 - 2¹ = 864080419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864080431) 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, 311011 + ... + 313776.

It is an arithmetic number, because the mean of its divisors is an integer number (144326028).

Almost surely, 2^864080421 is an apocalyptic number.

It is an amenable number.

864080421 is a deficient number, since it is larger than the sum of its proper divisors (290527803).

864080421 is a wasteful number, since it uses less digits than its factorization.

864080421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625251.

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 864080421 is about 29395.2448705569. The cubic root of 864080421 is about 952.4701812780.

The spelling of 864080421 in words is "eight hundred sixty-four million, eighty thousand, four hundred twenty-one".