3845939 has 2 divisors, whose sum is σ = 3845940. Its totient is φ = 3845938.

The previous prime is 3845929. The next prime is 3845977. The reversal of 3845939 is 9395483.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3845939 - 2¹² = 3841843 is a prime.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 3845896 and 3845905.

It is not a weakly prime, because it can be changed into another prime (3845909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1922969 + 1922970.

It is an arithmetic number, because the mean of its divisors is an integer number (1922970).

Almost surely, 2^3845939 is an apocalyptic number.

3845939 is a deficient number, since it is larger than the sum of its proper divisors (1).

3845939 is an equidigital number, since it uses as much as digits as its factorization.

3845939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 41.

The square root of 3845939 is about 1961.1065753803. The cubic root of 3845939 is about 156.6753946146.

The spelling of 3845939 in words is "three million, eight hundred forty-five thousand, nine hundred thirty-nine".