72829019 has 4 divisors (see below), whose sum is σ = 73021560. Its totient is φ = 72636480.

The previous prime is 72829007. The next prime is 72829051. The reversal of 72829019 is 91092827.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91092827 = 7 ⋅13013261.

It is a cyclic number.

It is not a de Polignac number, because 72829019 - 2²⁴ = 56051803 is a prime.

It is a super-2 number, since 2×72829019² = 10608132017004722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72829619) 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 3 ways as a sum of consecutive naturals, for example, 95702 + ... + 96459.

It is an arithmetic number, because the mean of its divisors is an integer number (18255390).

Almost surely, 2^72829019 is an apocalyptic number.

72829019 is a deficient number, since it is larger than the sum of its proper divisors (192541).

72829019 is a wasteful number, since it uses less digits than its factorization.

72829019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192540.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 72829019 is about 8533.9919732796. The cubic root of 72829019 is about 417.6073688500.

The spelling of 72829019 in words is "seventy-two million, eight hundred twenty-nine thousand, nineteen".