72665067 has 8 divisors (see below), whose sum is σ = 98715024. Its totient is φ = 47529248.

The previous prime is 72665057. The next prime is 72665071. The reversal of 72665067 is 76056627.

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 72665067 - 2⁷ = 72664939 is a prime.

It is a super-2 number, since 2×72665067² = 10560423924228978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72665057) 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, 228348 + ... + 228665.

It is an arithmetic number, because the mean of its divisors is an integer number (12339378).

Almost surely, 2^72665067 is an apocalyptic number.

72665067 is a deficient number, since it is larger than the sum of its proper divisors (26049957).

72665067 is a wasteful number, since it uses less digits than its factorization.

72665067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457069.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 72665067 is about 8524.3807399717. The cubic root of 72665067 is about 417.2937621473.

The spelling of 72665067 in words is "seventy-two million, six hundred sixty-five thousand, sixty-seven".