38428297 has 2 divisors, whose sum is σ = 38428298. Its totient is φ = 38428296.

The previous prime is 38428289. The next prime is 38428303. The reversal of 38428297 is 79282483.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25040016 + 13388281 = 5004^2 + 3659^2 .

It is a cyclic number.

It is not a de Polignac number, because 38428297 - 2³ = 38428289 is a prime.

It is not a weakly prime, because it can be changed into another prime (38428097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19214148 + 19214149.

It is an arithmetic number, because the mean of its divisors is an integer number (19214149).

Almost surely, 2^38428297 is an apocalyptic number.

It is an amenable number.

38428297 is a deficient number, since it is larger than the sum of its proper divisors (1).

38428297 is an equidigital number, since it uses as much as digits as its factorization.

38428297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 43.

The square root of 38428297 is about 6199.0561378326. The cubic root of 38428297 is about 337.4559159613.

The spelling of 38428297 in words is "thirty-eight million, four hundred twenty-eight thousand, two hundred ninety-seven".