72001367 has 4 divisors (see below), whose sum is σ = 72662040. Its totient is φ = 71340696.

The previous prime is 72001361. The next prime is 72001373. The reversal of 72001367 is 76310027.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (72001361) and next prime (72001373).

It is a cyclic number.

It is not a de Polignac number, because 72001367 - 2⁴ = 72001351 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 (72001361) 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, 330173 + ... + 330390.

It is an arithmetic number, because the mean of its divisors is an integer number (18165510).

Almost surely, 2^72001367 is an apocalyptic number.

72001367 is a deficient number, since it is larger than the sum of its proper divisors (660673).

72001367 is a wasteful number, since it uses less digits than its factorization.

72001367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660672.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 72001367 is about 8485.3619251037. The cubic root of 72001367 is about 416.0193974406.

The spelling of 72001367 in words is "seventy-two million, one thousand, three hundred sixty-seven".