72742363 has 2 divisors, whose sum is σ = 72742364. Its totient is φ = 72742362.

The previous prime is 72742309. The next prime is 72742379. The reversal of 72742363 is 36324727.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72742363 is a prime.

It is not a weakly prime, because it can be changed into another prime (72742463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36371181 + 36371182.

It is an arithmetic number, because the mean of its divisors is an integer number (36371182).

Almost surely, 2^72742363 is an apocalyptic number.

72742363 is a deficient number, since it is larger than the sum of its proper divisors (1).

72742363 is an equidigital number, since it uses as much as digits as its factorization.

72742363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 34.

The square root of 72742363 is about 8528.9133539977. The cubic root of 72742363 is about 417.4416723230.

The spelling of 72742363 in words is "seventy-two million, seven hundred forty-two thousand, three hundred sixty-three".