72068863 has 4 divisors (see below), whose sum is σ = 72254520. Its totient is φ = 71883208.

The previous prime is 72068861. The next prime is 72068869. The reversal of 72068863 is 36886027.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36886027 = 281 ⋅131267.

It is a cyclic number.

It is not a de Polignac number, because 72068863 - 2¹ = 72068861 is a prime.

It is a super-2 number, since 2×72068863² = 10387842028225538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72068861) 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, 92245 + ... + 93022.

It is an arithmetic number, because the mean of its divisors is an integer number (18063630).

Almost surely, 2^72068863 is an apocalyptic number.

72068863 is a deficient number, since it is larger than the sum of its proper divisors (185657).

72068863 is a wasteful number, since it uses less digits than its factorization.

72068863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185656.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 72068863 is about 8489.3381956428. The cubic root of 72068863 is about 416.1493527307.

The spelling of 72068863 in words is "seventy-two million, sixty-eight thousand, eight hundred sixty-three".