72001276 has 6 divisors (see below), whose sum is σ = 126002240. Its totient is φ = 36000636.

The previous prime is 72001271. The next prime is 72001291. The reversal of 72001276 is 67210027.

It is a self number, because there is not a number n which added to its sum of digits gives 72001276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72001271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9000156 + ... + 9000163.

Almost surely, 2^72001276 is an apocalyptic number.

It is an amenable number.

72001276 is a deficient number, since it is larger than the sum of its proper divisors (54000964).

72001276 is a wasteful number, since it uses less digits than its factorization.

72001276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18000323 (or 18000321 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 72001276 is about 8485.3565629265. The cubic root of 72001276 is about 416.0192221764.

The spelling of 72001276 in words is "seventy-two million, one thousand, two hundred seventy-six".