72811419 has 8 divisors (see below), whose sum is σ = 97700880. Its totient is φ = 48231456.

The previous prime is 72811411. The next prime is 72811429. The reversal of 72811419 is 91411827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72811419 - 2³ = 72811411 is a prime.

It is a super-2 number, since 2×72811419² = 10603005473587122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72811419.

It is not an unprimeable number, because it can be changed into a prime (72811411) 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 7 ways as a sum of consecutive naturals, for example, 76824 + ... + 77765.

It is an arithmetic number, because the mean of its divisors is an integer number (12212610).

Almost surely, 2^72811419 is an apocalyptic number.

72811419 is a deficient number, since it is larger than the sum of its proper divisors (24889461).

72811419 is a wasteful number, since it uses less digits than its factorization.

72811419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154749.

The product of its digits is 4032, while the sum is 33.

The square root of 72811419 is about 8532.9607405636. The cubic root of 72811419 is about 417.5737262081.

The spelling of 72811419 in words is "seventy-two million, eight hundred eleven thousand, four hundred nineteen".