39747941 has 2 divisors, whose sum is σ = 39747942. Its totient is φ = 39747940.

The previous prime is 39747937. The next prime is 39747949. The reversal of 39747941 is 14974793.

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., 39325441 + 422500 = 6271^2 + 650^2 .

It is a cyclic number.

It is not a de Polignac number, because 39747941 - 2² = 39747937 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 39747892 and 39747901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39747949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19873970 + 19873971.

It is an arithmetic number, because the mean of its divisors is an integer number (19873971).

Almost surely, 2^39747941 is an apocalyptic number.

It is an amenable number.

39747941 is a deficient number, since it is larger than the sum of its proper divisors (1).

39747941 is an equidigital number, since it uses as much as digits as its factorization.

39747941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 44.

The square root of 39747941 is about 6304.5968150231. The cubic root of 39747941 is about 341.2753170803.

The spelling of 39747941 in words is "thirty-nine million, seven hundred forty-seven thousand, nine hundred forty-one".