162872729 has 16 divisors (see below), whose sum is σ = 181509120. Its totient is φ = 145548480.

The previous prime is 162872707. The next prime is 162872737. The reversal of 162872729 is 927278261.

It is a cyclic number.

It is not a de Polignac number, because 162872729 - 2¹² = 162868633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 162872729.

It is not an unprimeable number, because it can be changed into a prime (162872789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16739 + ... + 24615.

It is an arithmetic number, because the mean of its divisors is an integer number (11344320).

Almost surely, 2^162872729 is an apocalyptic number.

It is an amenable number.

162872729 is a deficient number, since it is larger than the sum of its proper divisors (18636391).

162872729 is a wasteful number, since it uses less digits than its factorization.

162872729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7960.

The product of its digits is 169344, while the sum is 44.

The square root of 162872729 is about 12762.1600444439. The cubic root of 162872729 is about 546.1133473258.

The spelling of 162872729 in words is "one hundred sixty-two million, eight hundred seventy-two thousand, seven hundred twenty-nine".