72863769 has 8 divisors (see below), whose sum is σ = 105983712. Its totient is φ = 44159840.

The previous prime is 72863741. The next prime is 72863779. The reversal of 72863769 is 96736827.

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 72863769 - 2¹⁵ = 72831001 is a prime.

It is a super-2 number, since 2×72863769² = 10618257665770722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72863729) 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, 1103964 + ... + 1104029.

It is an arithmetic number, because the mean of its divisors is an integer number (13247964).

Almost surely, 2^72863769 is an apocalyptic number.

It is an amenable number.

72863769 is a deficient number, since it is larger than the sum of its proper divisors (33119943).

72863769 is a wasteful number, since it uses less digits than its factorization.

72863769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2208007.

The product of its digits is 762048, while the sum is 48.

The square root of 72863769 is about 8536.0277061406. The cubic root of 72863769 is about 417.6737780406.

The spelling of 72863769 in words is "seventy-two million, eight hundred sixty-three thousand, seven hundred sixty-nine".