38967431 has 2 divisors, whose sum is σ = 38967432. Its totient is φ = 38967430.

The previous prime is 38967407. The next prime is 38967433. The reversal of 38967431 is 13476983.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38967431 is a prime.

It is a super-2 number, since 2×38967431² = 3036921357479522, which contains 22 as substring.

Together with 38967433, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38967433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19483715 + 19483716.

It is an arithmetic number, because the mean of its divisors is an integer number (19483716).

Almost surely, 2^38967431 is an apocalyptic number.

38967431 is a deficient number, since it is larger than the sum of its proper divisors (1).

38967431 is an equidigital number, since it uses as much as digits as its factorization.

38967431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 41.

The square root of 38967431 is about 6242.3898468455. The cubic root of 38967431 is about 339.0267176989.

The spelling of 38967431 in words is "thirty-eight million, nine hundred sixty-seven thousand, four hundred thirty-one".