38362991 has 2 divisors, whose sum is σ = 38362992. Its totient is φ = 38362990.

The previous prime is 38362967. The next prime is 38363029. The reversal of 38362991 is 19926383.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38362991 - 2¹⁸ = 38100847 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38362901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19181495 + 19181496.

It is an arithmetic number, because the mean of its divisors is an integer number (19181496).

Almost surely, 2^38362991 is an apocalyptic number.

38362991 is a deficient number, since it is larger than the sum of its proper divisors (1).

38362991 is an equidigital number, since it uses as much as digits as its factorization.

38362991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 41.

The square root of 38362991 is about 6193.7864832427. The cubic root of 38362991 is about 337.2646472567.

The spelling of 38362991 in words is "thirty-eight million, three hundred sixty-two thousand, nine hundred ninety-one".