3870929 has 2 divisors, whose sum is σ = 3870930. Its totient is φ = 3870928.

The previous prime is 3870913. The next prime is 3870941. The reversal of 3870929 is 9290783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3323329 + 547600 = 1823^2 + 740^2 .

It is a cyclic number.

It is not a de Polignac number, because 3870929 - 2⁴ = 3870913 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3870892 and 3870901.

It is not a weakly prime, because it can be changed into another prime (3870959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1935464 + 1935465.

It is an arithmetic number, because the mean of its divisors is an integer number (1935465).

Almost surely, 2^3870929 is an apocalyptic number.

It is an amenable number.

3870929 is a deficient number, since it is larger than the sum of its proper divisors (1).

3870929 is an equidigital number, since it uses as much as digits as its factorization.

3870929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 3870929 is about 1967.4676617419. The cubic root of 3870929 is about 157.0140087842.

The spelling of 3870929 in words is "three million, eight hundred seventy thousand, nine hundred twenty-nine".