72027619 has 4 divisors (see below), whose sum is σ = 74511360. Its totient is φ = 69543880.

The previous prime is 72027617. The next prime is 72027647. The reversal of 72027619 is 91672027.

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 72027619 - 2¹ = 72027617 is a prime.

It is a super-2 number, since 2×72027619² = 10375955797618322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72027617) 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, 1241827 + ... + 1241884.

It is an arithmetic number, because the mean of its divisors is an integer number (18627840).

Almost surely, 2^72027619 is an apocalyptic number.

72027619 is a deficient number, since it is larger than the sum of its proper divisors (2483741).

72027619 is a wasteful number, since it uses less digits than its factorization.

72027619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2483740.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 72027619 is about 8486.9086833782. The cubic root of 72027619 is about 416.0699521019.

The spelling of 72027619 in words is "seventy-two million, twenty-seven thousand, six hundred nineteen".