3898769 has 4 divisors (see below), whose sum is σ = 4455744. Its totient is φ = 3341796.

The previous prime is 3898757. The next prime is 3898771. The reversal of 3898769 is 9678983.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9678983 = 1447 ⋅6689.

It is a cyclic number.

It is not a de Polignac number, because 3898769 - 2⁸ = 3898513 is a prime.

It is a super-2 number, since 2×3898769² = 30400799430722, which contains 22 as substring.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3898369) 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, 278477 + ... + 278490.

It is an arithmetic number, because the mean of its divisors is an integer number (1113936).

Almost surely, 2^3898769 is an apocalyptic number.

It is an amenable number.

3898769 is a deficient number, since it is larger than the sum of its proper divisors (556975).

3898769 is an equidigital number, since it uses as much as digits as its factorization.

3898769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556974.

The product of its digits is 653184, while the sum is 50.

The square root of 3898769 is about 1974.5300706750. The cubic root of 3898769 is about 157.3895286470.

The spelling of 3898769 in words is "three million, eight hundred ninety-eight thousand, seven hundred sixty-nine".