72982939 has 2 divisors, whose sum is σ = 72982940. Its totient is φ = 72982938.

The previous prime is 72982909. The next prime is 72982951. The reversal of 72982939 is 93928927.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72982939 - 2¹³ = 72974747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72982892 and 72982901.

It is not a weakly prime, because it can be changed into another prime (72982909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36491469 + 36491470.

It is an arithmetic number, because the mean of its divisors is an integer number (36491470).

Almost surely, 2^72982939 is an apocalyptic number.

72982939 is a deficient number, since it is larger than the sum of its proper divisors (1).

72982939 is an equidigital number, since it uses as much as digits as its factorization.

72982939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 49.

The square root of 72982939 is about 8543.0052674688. The cubic root of 72982939 is about 417.9013583315.

The spelling of 72982939 in words is "seventy-two million, nine hundred eighty-two thousand, nine hundred thirty-nine".