72869711 has 4 divisors (see below), whose sum is σ = 72952752. Its totient is φ = 72786672.

The previous prime is 72869707. The next prime is 72869723. The reversal of 72869711 is 11796827.

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

It is a cyclic number.

It is not a de Polignac number, because 72869711 - 2² = 72869707 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72869311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40190 + ... + 41963.

It is an arithmetic number, because the mean of its divisors is an integer number (18238188).

Almost surely, 2^72869711 is an apocalyptic number.

72869711 is a deficient number, since it is larger than the sum of its proper divisors (83041).

72869711 is an equidigital number, since it uses as much as digits as its factorization.

72869711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83040.

The product of its digits is 42336, while the sum is 41.

The square root of 72869711 is about 8536.3757532105. The cubic root of 72869711 is about 417.6851314204.

The spelling of 72869711 in words is "seventy-two million, eight hundred sixty-nine thousand, seven hundred eleven".