3900390029 has 2 divisors, whose sum is σ = 3900390030. Its totient is φ = 3900390028.

The previous prime is 3900390007. The next prime is 3900390047. The reversal of 3900390029 is 9200930093.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3466501129 + 433888900 = 58877^2 + 20830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3900390029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3900390089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1950195014 + 1950195015.

It is an arithmetic number, because the mean of its divisors is an integer number (1950195015).

Almost surely, 2^3900390029 is an apocalyptic number.

It is an amenable number.

3900390029 is a deficient number, since it is larger than the sum of its proper divisors (1).

3900390029 is an equidigital number, since it uses as much as digits as its factorization.

3900390029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13122, while the sum is 35.

The square root of 3900390029 is about 62453.1026370988. The cubic root of 3900390029 is about 1574.1133874811.

The spelling of 3900390029 in words is "three billion, nine hundred million, three hundred ninety thousand, twenty-nine".