39923141 has 2 divisors, whose sum is σ = 39923142. Its totient is φ = 39923140.

The previous prime is 39923119. The next prime is 39923183. The reversal of 39923141 is 14132993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21252100 + 18671041 = 4610^2 + 4321^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39923141 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 39923098 and 39923107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39923941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19961570 + 19961571.

It is an arithmetic number, because the mean of its divisors is an integer number (19961571).

Almost surely, 2^39923141 is an apocalyptic number.

It is an amenable number.

39923141 is a deficient number, since it is larger than the sum of its proper divisors (1).

39923141 is an equidigital number, since it uses as much as digits as its factorization.

39923141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 32.

The square root of 39923141 is about 6318.4761612275. The cubic root of 39923141 is about 341.7760038200.

The spelling of 39923141 in words is "thirty-nine million, nine hundred twenty-three thousand, one hundred forty-one".