729674919 has 16 divisors (see below), whose sum is σ = 1083794400. Its totient is φ = 485192448.

The previous prime is 729674857. The next prime is 729674921. The reversal of 729674919 is 919476927.

It is not a de Polignac number, because 729674919 - 2²⁰ = 728626343 is a prime.

It is a super-2 number, since 2×729674919² = 1064850974835313122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729674989) 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, 24234 + ... + 45239.

It is an arithmetic number, because the mean of its divisors is an integer number (67737150).

Almost surely, 2^729674919 is an apocalyptic number.

729674919 is a deficient number, since it is larger than the sum of its proper divisors (354119481).

729674919 is a wasteful number, since it uses less digits than its factorization.

729674919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69871 (or 69865 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 54.

The square root of 729674919 is about 27012.4956085142. The cubic root of 729674919 is about 900.2776587752.

It can be divided in two parts, 7296 and 74919, that added together give a triangular number (82215 = T₄₀₅).

The spelling of 729674919 in words is "seven hundred twenty-nine million, six hundred seventy-four thousand, nine hundred nineteen".