72718429 has 16 divisors (see below), whose sum is σ = 84706560. Its totient is φ = 61142400.

The previous prime is 72718417. The next prime is 72718441. The reversal of 72718429 is 92481727.

It is an interprime number because it is at equal distance from previous prime (72718417) and next prime (72718441).

It is a cyclic number.

It is not a de Polignac number, because 72718429 - 2⁵ = 72718397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72718391 and 72718400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72718409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93687 + ... + 94459.

It is an arithmetic number, because the mean of its divisors is an integer number (5294160).

Almost surely, 2^72718429 is an apocalyptic number.

It is an amenable number.

72718429 is a deficient number, since it is larger than the sum of its proper divisors (11988131).

72718429 is a wasteful number, since it uses less digits than its factorization.

72718429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020.

The product of its digits is 56448, while the sum is 40.

The square root of 72718429 is about 8527.5101289884. The cubic root of 72718429 is about 417.3958844925.

The spelling of 72718429 in words is "seventy-two million, seven hundred eighteen thousand, four hundred twenty-nine".