38757947 has 2 divisors, whose sum is σ = 38757948. Its totient is φ = 38757946.

The previous prime is 38757941. The next prime is 38757991. The reversal of 38757947 is 74975783.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38757947 - 2⁴ = 38757931 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 38757895 and 38757904.

It is not a weakly prime, because it can be changed into another prime (38757941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19378973 + 19378974.

It is an arithmetic number, because the mean of its divisors is an integer number (19378974).

Almost surely, 2^38757947 is an apocalyptic number.

38757947 is a deficient number, since it is larger than the sum of its proper divisors (1).

38757947 is an equidigital number, since it uses as much as digits as its factorization.

38757947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1481760, while the sum is 50.

The square root of 38757947 is about 6225.5880846712. The cubic root of 38757947 is about 338.4181041411.

The spelling of 38757947 in words is "thirty-eight million, seven hundred fifty-seven thousand, nine hundred forty-seven".