38463881 has 2 divisors, whose sum is σ = 38463882. Its totient is φ = 38463880.

The previous prime is 38463871. The next prime is 38463917. The reversal of 38463881 is 18836483.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35295481 + 3168400 = 5941^2 + 1780^2 .

It is an emirp because it is prime and its reverse (18836483) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38463881 is a prime.

It is a super-2 number, since 2×38463881² = 2958940283164322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38463851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19231940 + 19231941.

It is an arithmetic number, because the mean of its divisors is an integer number (19231941).

Almost surely, 2^38463881 is an apocalyptic number.

It is an amenable number.

38463881 is a deficient number, since it is larger than the sum of its proper divisors (1).

38463881 is an equidigital number, since it uses as much as digits as its factorization.

38463881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 41.

The square root of 38463881 is about 6201.9255880734. The cubic root of 38463881 is about 337.5600434553.

The spelling of 38463881 in words is "thirty-eight million, four hundred sixty-three thousand, eight hundred eighty-one".