72276763 has 8 divisors (see below), whose sum is σ = 78242528. Its totient is φ = 66369024.

The previous prime is 72276749. The next prime is 72276769. The reversal of 72276763 is 36767227.

It is a happy number.

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 72276763 - 2⁵ = 72276731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72276769) 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, 11895 + ... + 16912.

It is an arithmetic number, because the mean of its divisors is an integer number (9780316).

Almost surely, 2^72276763 is an apocalyptic number.

72276763 is a deficient number, since it is larger than the sum of its proper divisors (5965765).

72276763 is a wasteful number, since it uses less digits than its factorization.

72276763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29013.

The product of its digits is 148176, while the sum is 40.

The square root of 72276763 is about 8501.5741483563. The cubic root of 72276763 is about 416.5491295850.

The spelling of 72276763 in words is "seventy-two million, two hundred seventy-six thousand, seven hundred sixty-three".