72072283 has 4 divisors (see below), whose sum is σ = 72125200. Its totient is φ = 72019368.

The previous prime is 72072281. The next prime is 72072307. The reversal of 72072283 is 38227027.

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 72072283 - 2¹ = 72072281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72072281) 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, 24360 + ... + 27157.

It is an arithmetic number, because the mean of its divisors is an integer number (18031300).

Almost surely, 2^72072283 is an apocalyptic number.

72072283 is a deficient number, since it is larger than the sum of its proper divisors (52917).

72072283 is a wasteful number, since it uses less digits than its factorization.

72072283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52916.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 72072283 is about 8489.5396223824. The cubic root of 72072283 is about 416.1559353620.

The spelling of 72072283 in words is "seventy-two million, seventy-two thousand, two hundred eighty-three".