72029563 has 4 divisors (see below), whose sum is σ = 72056880. Its totient is φ = 72002248.

The previous prime is 72029557. The next prime is 72029599. The reversal of 72029563 is 36592027.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36592027 = 1549 ⋅23623.

It is a cyclic number.

It is not a de Polignac number, because 72029563 - 2¹³ = 72021371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72029263) 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, 9223 + ... + 15136.

It is an arithmetic number, because the mean of its divisors is an integer number (18014220).

Almost surely, 2^72029563 is an apocalyptic number.

72029563 is a deficient number, since it is larger than the sum of its proper divisors (27317).

72029563 is a wasteful number, since it uses less digits than its factorization.

72029563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27316.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 72029563 is about 8487.0232119395. The cubic root of 72029563 is about 416.0736952619.

The spelling of 72029563 in words is "seventy-two million, twenty-nine thousand, five hundred sixty-three".