15714729 has 20 divisors (see below), whose sum is σ = 24713040. Its totient is φ = 9924120.

The previous prime is 15714719. The next prime is 15714731. The reversal of 15714729 is 92741751.

It is a happy number.

It is not a de Polignac number, because 15714729 - 2⁵ = 15714697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15714693 and 15714702.

It is not an unprimeable number, because it can be changed into a prime (15714719) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3567 + ... + 6644.

It is an arithmetic number, because the mean of its divisors is an integer number (1235652).

Almost surely, 2^15714729 is an apocalyptic number.

15714729 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

15714729 is a deficient number, since it is larger than the sum of its proper divisors (8998311).

15714729 is a wasteful number, since it uses less digits than its factorization.

15714729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10242 (or 10233 counting only the distinct ones).

The product of its digits is 17640, while the sum is 36.

The square root of 15714729 is about 3964.1807476451. The cubic root of 15714729 is about 250.4776415198.

The spelling of 15714729 in words is "fifteen million, seven hundred fourteen thousand, seven hundred twenty-nine".