864072495 has 144 divisors (see below), whose sum is σ = 1834187040. Its totient is φ = 385482240.

The previous prime is 864072493. The next prime is 864072551. The reversal of 864072495 is 594270468.

It is a happy number.

864072495 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 864072495 - 2¹ = 864072493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 864072495.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864072493) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2760459 + ... + 2760771.

It is an arithmetic number, because the mean of its divisors is an integer number (12737410).

Almost surely, 2^864072495 is an apocalyptic number.

864072495 is an abundant number, since it is smaller than the sum of its proper divisors (970114545).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

864072495 is a wasteful number, since it uses less digits than its factorization.

864072495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 864072495 is about 29395.1100525240. The cubic root of 864072495 is about 952.4672690098.

The spelling of 864072495 in words is "eight hundred sixty-four million, seventy-two thousand, four hundred ninety-five".