72092219 has 4 divisors (see below), whose sum is σ = 73626144. Its totient is φ = 70558296.

The previous prime is 72092197. The next prime is 72092261. The reversal of 72092219 is 91229027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91229027 = 2843 ⋅32089.

It is a cyclic number.

It is not a de Polignac number, because 72092219 - 2¹² = 72088123 is a prime.

It is a super-2 number, since 2×72092219² = 10394576080687922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72092519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 766892 + ... + 766985.

It is an arithmetic number, because the mean of its divisors is an integer number (18406536).

Almost surely, 2^72092219 is an apocalyptic number.

72092219 is a deficient number, since it is larger than the sum of its proper divisors (1533925).

72092219 is a wasteful number, since it uses less digits than its factorization.

72092219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533924.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 72092219 is about 8490.7136920285. The cubic root of 72092219 is about 416.1943029542.

The spelling of 72092219 in words is "seventy-two million, ninety-two thousand, two hundred nineteen".