72239207 has 8 divisors (see below), whose sum is σ = 76586112. Its totient is φ = 68018400.

The previous prime is 72239191. The next prime is 72239227. The reversal of 72239207 is 70293227.

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

It is a cyclic number.

It is not a de Polignac number, because 72239207 - 2⁴ = 72239191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72239227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30344 + ... + 32637.

It is an arithmetic number, because the mean of its divisors is an integer number (9573264).

Almost surely, 2^72239207 is an apocalyptic number.

72239207 is a deficient number, since it is larger than the sum of its proper divisors (4346905).

72239207 is a wasteful number, since it uses less digits than its factorization.

72239207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63049.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 72239207 is about 8499.3650939350. The cubic root of 72239207 is about 416.4769688663.

The spelling of 72239207 in words is "seventy-two million, two hundred thirty-nine thousand, two hundred seven".