729874 has 4 divisors (see below), whose sum is σ = 1094814. Its totient is φ = 364936.

The previous prime is 729871. The next prime is 729877. The reversal of 729874 is 478927.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (729871) and next prime (729877).

It can be written as a sum of positive squares in only one way, i.e., 378225 + 351649 = 615^2 + 593^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (729871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182467 + ... + 182470.

2⁷²⁹⁸⁷⁴ is an apocalyptic number.

729874 is a deficient number, since it is larger than the sum of its proper divisors (364940).

729874 is a wasteful number, since it uses less digits than its factorization.

729874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364939.

The product of its digits is 28224, while the sum is 37.

The square root of 729874 is about 854.3266354270. The cubic root of 729874 is about 90.0359527141.

The spelling of 729874 in words is "seven hundred twenty-nine thousand, eight hundred seventy-four".