38270447 has 2 divisors, whose sum is σ = 38270448. Its totient is φ = 38270446.

The previous prime is 38270443. The next prime is 38270513. The reversal of 38270447 is 74407283.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38270447 - 2² = 38270443 is a prime.

It is a super-2 number, since 2×38270447² = 2929254227159618, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38270443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19135223 + 19135224.

It is an arithmetic number, because the mean of its divisors is an integer number (19135224).

Almost surely, 2^38270447 is an apocalyptic number.

38270447 is a deficient number, since it is larger than the sum of its proper divisors (1).

38270447 is an equidigital number, since it uses as much as digits as its factorization.

38270447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 38270447 is about 6186.3112595472. The cubic root of 38270447 is about 336.9932315852.

The spelling of 38270447 in words is "thirty-eight million, two hundred seventy thousand, four hundred forty-seven".