72737276 has 6 divisors (see below), whose sum is σ = 127290240. Its totient is φ = 36368636.

The previous prime is 72737257. The next prime is 72737279. The reversal of 72737276 is 67273727.

It is a super-2 number, since 2×72737276² = 10581422639800352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72737279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9092156 + ... + 9092163.

It is an arithmetic number, because the mean of its divisors is an integer number (21215040).

Almost surely, 2^72737276 is an apocalyptic number.

It is an amenable number.

72737276 is a deficient number, since it is larger than the sum of its proper divisors (54552964).

72737276 is a wasteful number, since it uses less digits than its factorization.

72737276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18184323 (or 18184321 counting only the distinct ones).

The product of its digits is 172872, while the sum is 41.

The square root of 72737276 is about 8528.6151279091. The cubic root of 72737276 is about 417.4319412887.

The spelling of 72737276 in words is "seventy-two million, seven hundred thirty-seven thousand, two hundred seventy-six".