72802276 has 6 divisors (see below), whose sum is σ = 127403990. Its totient is φ = 36401136.

The previous prime is 72802259. The next prime is 72802277. The reversal of 72802276 is 67220827.

It can be written as a sum of positive squares in only one way, i.e., 40653376 + 32148900 = 6376^2 + 5670^2 .

It is not an unprimeable number, because it can be changed into a prime (72802277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9100281 + ... + 9100288.

Almost surely, 2^72802276 is an apocalyptic number.

It is an amenable number.

72802276 is a deficient number, since it is larger than the sum of its proper divisors (54601714).

72802276 is a wasteful number, since it uses less digits than its factorization.

72802276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18200573 (or 18200571 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 72802276 is about 8532.4249776954. The cubic root of 72802276 is about 417.5562470981.

The spelling of 72802276 in words is "seventy-two million, eight hundred two thousand, two hundred seventy-six".