38629427 has 2 divisors, whose sum is σ = 38629428. Its totient is φ = 38629426.

The previous prime is 38629403. The next prime is 38629433. The reversal of 38629427 is 72492683.

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-38629427 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38629447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19314713 + 19314714.

It is an arithmetic number, because the mean of its divisors is an integer number (19314714).

Almost surely, 2^38629427 is an apocalyptic number.

38629427 is a deficient number, since it is larger than the sum of its proper divisors (1).

38629427 is an equidigital number, since it uses as much as digits as its factorization.

38629427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 41.

The square root of 38629427 is about 6215.2575972360. The cubic root of 38629427 is about 338.0436290448.

The spelling of 38629427 in words is "thirty-eight million, six hundred twenty-nine thousand, four hundred twenty-seven".