38002091 has 2 divisors, whose sum is σ = 38002092. Its totient is φ = 38002090.

The previous prime is 38002079. The next prime is 38002117. The reversal of 38002091 is 19020083.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38002091 - 2¹⁴ = 37985707 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38002051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19001045 + 19001046.

It is an arithmetic number, because the mean of its divisors is an integer number (19001046).

Almost surely, 2^38002091 is an apocalyptic number.

38002091 is a deficient number, since it is larger than the sum of its proper divisors (1).

38002091 is an equidigital number, since it uses as much as digits as its factorization.

38002091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 38002091 is about 6164.5836031317. The cubic root of 38002091 is about 336.2037071375.

The spelling of 38002091 in words is "thirty-eight million, two thousand, ninety-one".