38689951 has 2 divisors, whose sum is σ = 38689952. Its totient is φ = 38689950.

The previous prime is 38689919. The next prime is 38689997. The reversal of 38689951 is 15998683.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38689951 - 2⁵ = 38689919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38689895 and 38689904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38689751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19344975 + 19344976.

It is an arithmetic number, because the mean of its divisors is an integer number (19344976).

Almost surely, 2^38689951 is an apocalyptic number.

38689951 is a deficient number, since it is larger than the sum of its proper divisors (1).

38689951 is an equidigital number, since it uses as much as digits as its factorization.

38689951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 49.

The square root of 38689951 is about 6220.1246772070. The cubic root of 38689951 is about 338.2200841304.

The spelling of 38689951 in words is "thirty-eight million, six hundred eighty-nine thousand, nine hundred fifty-one".