3898429 has 4 divisors (see below), whose sum is σ = 3928320. Its totient is φ = 3868540.

The previous prime is 3898421. The next prime is 3898451. The reversal of 3898429 is 9248983.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3898429 - 2³ = 3898421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14749 + ... + 15010.

It is an arithmetic number, because the mean of its divisors is an integer number (982080).

Almost surely, 2^3898429 is an apocalyptic number.

It is an amenable number.

3898429 is a deficient number, since it is larger than the sum of its proper divisors (29891).

3898429 is a wasteful number, since it uses less digits than its factorization.

3898429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29890.

The product of its digits is 124416, while the sum is 43.

The square root of 3898429 is about 1974.4439723629. The cubic root of 3898429 is about 157.3849533571.

The spelling of 3898429 in words is "three million, eight hundred ninety-eight thousand, four hundred twenty-nine".