38899093 has 2 divisors, whose sum is σ = 38899094. Its totient is φ = 38899092.

The previous prime is 38899073. The next prime is 38899097. The reversal of 38899093 is 39099883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38651089 + 248004 = 6217^2 + 498^2 .

It is an emirp because it is prime and its reverse (39099883) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38899093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38899097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19449546 + 19449547.

It is an arithmetic number, because the mean of its divisors is an integer number (19449547).

Almost surely, 2^38899093 is an apocalyptic number.

It is an amenable number.

38899093 is a deficient number, since it is larger than the sum of its proper divisors (1).

38899093 is an equidigital number, since it uses as much as digits as its factorization.

38899093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 38899093 is about 6236.9137399839. The cubic root of 38899093 is about 338.8284156460.

The spelling of 38899093 in words is "thirty-eight million, eight hundred ninety-nine thousand, ninety-three".