72047363 has 4 divisors (see below), whose sum is σ = 72211920. Its totient is φ = 71882808.

The previous prime is 72047357. The next prime is 72047383. The reversal of 72047363 is 36374027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36374027 = 593 ⋅61339.

It is a cyclic number.

It is not a de Polignac number, because 72047363 - 2⁴ = 72047347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72047323) 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, 81620 + ... + 82497.

It is an arithmetic number, because the mean of its divisors is an integer number (18052980).

Almost surely, 2^72047363 is an apocalyptic number.

72047363 is a deficient number, since it is larger than the sum of its proper divisors (164557).

72047363 is a wasteful number, since it uses less digits than its factorization.

72047363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164556.

The product of its (nonzero) digits is 21168, while the sum is 32.

The square root of 72047363 is about 8488.0718069536. The cubic root of 72047363 is about 416.1079659210.

The spelling of 72047363 in words is "seventy-two million, forty-seven thousand, three hundred sixty-three".