38427427 has 2 divisors, whose sum is σ = 38427428. Its totient is φ = 38427426.

The previous prime is 38427421. The next prime is 38427439. The reversal of 38427427 is 72472483.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38427427 - 2⁷ = 38427299 is a prime.

It is not a weakly prime, because it can be changed into another prime (38427421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19213713 + 19213714.

It is an arithmetic number, because the mean of its divisors is an integer number (19213714).

Almost surely, 2^38427427 is an apocalyptic number.

38427427 is a deficient number, since it is larger than the sum of its proper divisors (1).

38427427 is an equidigital number, since it uses as much as digits as its factorization.

38427427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75264, while the sum is 37.

The square root of 38427427 is about 6198.9859654624. The cubic root of 38427427 is about 337.4533693235.

The spelling of 38427427 in words is "thirty-eight million, four hundred twenty-seven thousand, four hundred twenty-seven".