38751893 has 2 divisors, whose sum is σ = 38751894. Its totient is φ = 38751892.

The previous prime is 38751877. The next prime is 38751931. The reversal of 38751893 is 39815783.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33097009 + 5654884 = 5753^2 + 2378^2 .

It is a cyclic number.

It is not a de Polignac number, because 38751893 - 2⁴ = 38751877 is a prime.

It is a super-2 number, since 2×38751893² = 3003418422166898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38751833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19375946 + 19375947.

It is an arithmetic number, because the mean of its divisors is an integer number (19375947).

Almost surely, 2^38751893 is an apocalyptic number.

It is an amenable number.

38751893 is a deficient number, since it is larger than the sum of its proper divisors (1).

38751893 is an equidigital number, since it uses as much as digits as its factorization.

38751893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 44.

The square root of 38751893 is about 6225.1018465564. The cubic root of 38751893 is about 338.4004828957.

The spelling of 38751893 in words is "thirty-eight million, seven hundred fifty-one thousand, eight hundred ninety-three".