864747429 has 16 divisors (see below), whose sum is σ = 1419073152. Its totient is φ = 456130368.

The previous prime is 864747427. The next prime is 864747431. The reversal of 864747429 is 924747468.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (864747427) and next prime (864747431).

It is not a de Polignac number, because 864747429 - 2¹ = 864747427 is a prime.

It is a super-2 number, since 2×864747429² = 1495576231924220082, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864747427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1583514 + ... + 1584059.

It is an arithmetic number, because the mean of its divisors is an integer number (88692072).

Almost surely, 2^864747429 is an apocalyptic number.

It is an amenable number.

864747429 is a deficient number, since it is larger than the sum of its proper divisors (554325723).

864747429 is a wasteful number, since it uses less digits than its factorization.

864747429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3167596.

The product of its digits is 2709504, while the sum is 51.

The square root of 864747429 is about 29406.5881904039. The cubic root of 864747429 is about 952.7151977584.

The spelling of 864747429 in words is "eight hundred sixty-four million, seven hundred forty-seven thousand, four hundred twenty-nine".