72207969 has 8 divisors (see below), whose sum is σ = 96320640. Its totient is φ = 48116976.

The previous prime is 72207953. The next prime is 72207973. The reversal of 72207969 is 96970227.

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

It is not a de Polignac number, because 72207969 - 2⁴ = 72207953 is a prime.

It is a super-2 number, since 2×72207969² = 10427981574209922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72207969.

It is not an unprimeable number, because it can be changed into a prime (72207169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5499 + ... + 13215.

It is an arithmetic number, because the mean of its divisors is an integer number (12040080).

Almost surely, 2^72207969 is an apocalyptic number.

It is an amenable number.

72207969 is a deficient number, since it is larger than the sum of its proper divisors (24112671).

72207969 is a wasteful number, since it uses less digits than its factorization.

72207969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10839.

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 72207969 is about 8497.5272285530. The cubic root of 72207969 is about 416.4169286018.

The spelling of 72207969 in words is "seventy-two million, two hundred seven thousand, nine hundred sixty-nine".