72897069 has 16 divisors (see below), whose sum is σ = 111200768. Its totient is φ = 41610672.

The previous prime is 72897061. The next prime is 72897073. The reversal of 72897069 is 96079827.

It is not a de Polignac number, because 72897069 - 2³ = 72897061 is a prime.

It is a super-2 number, since 2×72897069² = 10627965337581522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72897061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35694 + ... + 37680.

It is an arithmetic number, because the mean of its divisors is an integer number (6950048).

Almost surely, 2^72897069 is an apocalyptic number.

It is an amenable number.

72897069 is a deficient number, since it is larger than the sum of its proper divisors (38303699).

72897069 is a wasteful number, since it uses less digits than its factorization.

72897069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3744.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 72897069 is about 8537.9780393252. The cubic root of 72897069 is about 417.7373963917.

The spelling of 72897069 in words is "seventy-two million, eight hundred ninety-seven thousand, sixty-nine".