72076247 has 2 divisors, whose sum is σ = 72076248. Its totient is φ = 72076246.

The previous prime is 72076171. The next prime is 72076267. The reversal of 72076247 is 74267027.

It is a strong prime.

It is an emirp because it is prime and its reverse (74267027) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72076247 - 2¹² = 72072151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72076267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36038123 + 36038124.

It is an arithmetic number, because the mean of its divisors is an integer number (36038124).

Almost surely, 2^72076247 is an apocalyptic number.

72076247 is a deficient number, since it is larger than the sum of its proper divisors (1).

72076247 is an equidigital number, since it uses as much as digits as its factorization.

72076247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 72076247 is about 8489.7730829510. The cubic root of 72076247 is about 416.1635647947.

It can be divided in two parts, 720 and 76247, that added together give a palindrome (76967).

The spelling of 72076247 in words is "seventy-two million, seventy-six thousand, two hundred forty-seven".