3897808429 has 2 divisors, whose sum is σ = 3897808430. Its totient is φ = 3897808428.

The previous prime is 3897808417. The next prime is 3897808469. The reversal of 3897808429 is 9248087983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2190052804 + 1707755625 = 46798^2 + 41325^2 .

It is a cyclic number.

It is not a de Polignac number, because 3897808429 - 2¹⁹ = 3897284141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3897808469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1948904214 + 1948904215.

It is an arithmetic number, because the mean of its divisors is an integer number (1948904215).

Almost surely, 2^3897808429 is an apocalyptic number.

It is an amenable number.

3897808429 is a deficient number, since it is larger than the sum of its proper divisors (1).

3897808429 is an equidigital number, since it uses as much as digits as its factorization.

3897808429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6967296, while the sum is 58.

The square root of 3897808429 is about 62432.4309073417. The cubic root of 3897808429 is about 1573.7660181162.

The spelling of 3897808429 in words is "three billion, eight hundred ninety-seven million, eight hundred eight thousand, four hundred twenty-nine".