72065594 has 8 divisors (see below), whose sum is σ = 113787840. Its totient is φ = 34136316.

The previous prime is 72065563. The next prime is 72065597. The reversal of 72065594 is 49556027.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 1896463 = 72065594 / (7 + 2 + 0 + 6 + 5 + 5 + 9 + 4).

It is not an unprimeable number, because it can be changed into a prime (72065597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 948194 + ... + 948269.

It is an arithmetic number, because the mean of its divisors is an integer number (14223480).

Almost surely, 2^72065594 is an apocalyptic number.

72065594 is a deficient number, since it is larger than the sum of its proper divisors (41722246).

72065594 is a wasteful number, since it uses less digits than its factorization.

72065594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1896484.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 72065594 is about 8489.1456578386. The cubic root of 72065594 is about 416.1430605413.

The spelling of 72065594 in words is "seventy-two million, sixty-five thousand, five hundred ninety-four".