72817467 has 4 divisors (see below), whose sum is σ = 97089960. Its totient is φ = 48544976.

The previous prime is 72817457. The next prime is 72817489. The reversal of 72817467 is 76471827.

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 72817467 - 2⁸ = 72817211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72817417) 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, 12136242 + ... + 12136247.

It is an arithmetic number, because the mean of its divisors is an integer number (24272490).

Almost surely, 2^72817467 is an apocalyptic number.

72817467 is a deficient number, since it is larger than the sum of its proper divisors (24272493).

72817467 is a wasteful number, since it uses less digits than its factorization.

72817467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24272492.

The product of its digits is 131712, while the sum is 42.

The square root of 72817467 is about 8533.3151236785. The cubic root of 72817467 is about 417.5852876546.

The spelling of 72817467 in words is "seventy-two million, eight hundred seventeen thousand, four hundred sixty-seven".