729274895 has 4 divisors (see below), whose sum is σ = 875129880. Its totient is φ = 583419912.

The previous prime is 729274879. The next prime is 729274933. The reversal of 729274895 is 598472927.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 598472927 = 13 ⋅46036379.

It is a cyclic number.

It is not a de Polignac number, because 729274895 - 2⁴ = 729274879 is a prime.

It is a super-2 number, since 2×729274895² = 1063683744954522050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 72927485 + ... + 72927494.

It is an arithmetic number, because the mean of its divisors is an integer number (218782470).

Almost surely, 2^729274895 is an apocalyptic number.

729274895 is a deficient number, since it is larger than the sum of its proper divisors (145854985).

729274895 is a wasteful number, since it uses less digits than its factorization.

729274895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145854984.

The product of its digits is 2540160, while the sum is 53.

The square root of 729274895 is about 27005.0901683368. The cubic root of 729274895 is about 900.1131112981.

The spelling of 729274895 in words is "seven hundred twenty-nine million, two hundred seventy-four thousand, eight hundred ninety-five".