72276071 has 8 divisors (see below), whose sum is σ = 84616224. Its totient is φ = 60439680.

The previous prime is 72276067. The next prime is 72276079. The reversal of 72276071 is 17067227.

It is a happy number.

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

It is not a de Polignac number, because 72276071 - 2² = 72276067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72276079) 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, 125630 + ... + 126203.

It is an arithmetic number, because the mean of its divisors is an integer number (10577028).

Almost surely, 2^72276071 is an apocalyptic number.

72276071 is a deficient number, since it is larger than the sum of its proper divisors (12340153).

72276071 is a wasteful number, since it uses less digits than its factorization.

72276071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251881.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 72276071 is about 8501.5334499136. The cubic root of 72276071 is about 416.5478001908.

The spelling of 72276071 in words is "seventy-two million, two hundred seventy-six thousand, seventy-one".