3813478 has 4 divisors (see below), whose sum is σ = 5720220. Its totient is φ = 1906738.

The previous prime is 3813463. The next prime is 3813493. The reversal of 3813478 is 8743183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8743183 = 1871 ⋅4673.

It is an interprime number because it is at equal distance from previous prime (3813463) and next prime (3813493).

It is a super-2 number, since 2×3813478² = 29085228912968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 953368 + ... + 953371.

It is an arithmetic number, because the mean of its divisors is an integer number (1430055).

Almost surely, 2^3813478 is an apocalyptic number.

3813478 is a deficient number, since it is larger than the sum of its proper divisors (1906742).

3813478 is a wasteful number, since it uses less digits than its factorization.

3813478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906741.

The product of its digits is 16128, while the sum is 34.

The square root of 3813478 is about 1952.8128430549. The cubic root of 3813478 is about 156.2333511861.

The spelling of 3813478 in words is "three million, eight hundred thirteen thousand, four hundred seventy-eight".