72798371 has 2 divisors, whose sum is σ = 72798372. Its totient is φ = 72798370.

The previous prime is 72798343. The next prime is 72798373. The reversal of 72798371 is 17389727.

It is a strong prime.

It is an emirp because it is prime and its reverse (17389727) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72798371 - 2⁶ = 72798307 is a prime.

It is a Sophie Germain prime.

Together with 72798373, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72798373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36399185 + 36399186.

It is an arithmetic number, because the mean of its divisors is an integer number (36399186).

Almost surely, 2^72798371 is an apocalyptic number.

72798371 is a deficient number, since it is larger than the sum of its proper divisors (1).

72798371 is an equidigital number, since it uses as much as digits as its factorization.

72798371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 148176, while the sum is 44.

The square root of 72798371 is about 8532.1961416742. The cubic root of 72798371 is about 417.5487812771.

The spelling of 72798371 in words is "seventy-two million, seven hundred ninety-eight thousand, three hundred seventy-one".