3898946 has 4 divisors (see below), whose sum is σ = 5848422. Its totient is φ = 1949472.

The previous prime is 3898943. The next prime is 3898957. The reversal of 3898946 is 6498983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6498983 = 83 ⋅78301.

It can be written as a sum of positive squares in only one way, i.e., 3568321 + 330625 = 1889^2 + 575^2 .

It is a plaindrome in base 11.

It is a zygodrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 3898946.

It is not an unprimeable number, because it can be changed into a prime (3898943) by changing a digit.

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, 974735 + ... + 974738.

Almost surely, 2^3898946 is an apocalyptic number.

3898946 is a deficient number, since it is larger than the sum of its proper divisors (1949476).

3898946 is a wasteful number, since it uses less digits than its factorization.

3898946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949475.

The product of its digits is 373248, while the sum is 47.

The square root of 3898946 is about 1974.5748909575. The cubic root of 3898946 is about 157.3919103838.

The spelling of 3898946 in words is "three million, eight hundred ninety-eight thousand, nine hundred forty-six".