3897398 has 4 divisors (see below), whose sum is σ = 5846100. Its totient is φ = 1948698.

The previous prime is 3897389. The next prime is 3897401. The reversal of 3897398 is 8937983.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×3897398² = 30379422340808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974348 + ... + 974351.

It is an arithmetic number, because the mean of its divisors is an integer number (1461525).

Almost surely, 2^3897398 is an apocalyptic number.

3897398 is a deficient number, since it is larger than the sum of its proper divisors (1948702).

3897398 is a wasteful number, since it uses less digits than its factorization.

3897398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948701.

The product of its digits is 326592, while the sum is 47.

The square root of 3897398 is about 1974.1828689359. The cubic root of 3897398 is about 157.3710778366.

The spelling of 3897398 in words is "three million, eight hundred ninety-seven thousand, three hundred ninety-eight".