3890129 has 2 divisors, whose sum is σ = 3890130. Its totient is φ = 3890128.

The previous prime is 3890119. The next prime is 3890149. The reversal of 3890129 is 9210983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3330625 + 559504 = 1825^2 + 748^2 .

It is an emirp because it is prime and its reverse (9210983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3890129 - 2⁴ = 3890113 is a prime.

It is a Sophie Germain 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 = 3890095 and 3890104.

It is not a weakly prime, because it can be changed into another prime (3890119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1945064 + 1945065.

It is an arithmetic number, because the mean of its divisors is an integer number (1945065).

Almost surely, 2^3890129 is an apocalyptic number.

It is an amenable number.

3890129 is a deficient number, since it is larger than the sum of its proper divisors (1).

3890129 is an equidigital number, since it uses as much as digits as its factorization.

3890129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 3890129 is about 1972.3409948586. The cubic root of 3890129 is about 157.2731798476.

The spelling of 3890129 in words is "three million, eight hundred ninety thousand, one hundred twenty-nine".