72682331 has 2 divisors, whose sum is σ = 72682332. Its totient is φ = 72682330.

The previous prime is 72682303. The next prime is 72682333. The reversal of 72682331 is 13328627.

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-72682331 is a prime.

It is a super-2 number, since 2×72682331² = 10565442479187122, which contains 22 as substring.

Together with 72682333, 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 (72682333) 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, 36341165 + 36341166.

It is an arithmetic number, because the mean of its divisors is an integer number (36341166).

Almost surely, 2^72682331 is an apocalyptic number.

72682331 is a deficient number, since it is larger than the sum of its proper divisors (1).

72682331 is an equidigital number, since it uses as much as digits as its factorization.

72682331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 32.

The square root of 72682331 is about 8525.3933047103. The cubic root of 72682331 is about 417.3268068613.

The spelling of 72682331 in words is "seventy-two million, six hundred eighty-two thousand, three hundred thirty-one".