67424831 has 2 divisors, whose sum is σ = 67424832. Its totient is φ = 67424830.

The previous prime is 67424827. The next prime is 67424843. The reversal of 67424831 is 13842476.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67424831 - 2² = 67424827 is a prime.

It is a super-2 number, since 2×67424831² = 9092215670757122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67424791 and 67424800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67420831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33712415 + 33712416.

It is an arithmetic number, because the mean of its divisors is an integer number (33712416).

Almost surely, 2^67424831 is an apocalyptic number.

67424831 is a deficient number, since it is larger than the sum of its proper divisors (1).

67424831 is an equidigital number, since it uses as much as digits as its factorization.

67424831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 35.

The square root of 67424831 is about 8211.2624486129. The cubic root of 67424831 is about 407.0114455667.

The spelling of 67424831 in words is "sixty-seven million, four hundred twenty-four thousand, eight hundred thirty-one".