3894434 has 4 divisors (see below), whose sum is σ = 5841654. Its totient is φ = 1947216.

The previous prime is 3894433. The next prime is 3894469. The reversal of 3894434 is 4344983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4344983 = 29 ⋅149827.

It can be written as a sum of positive squares in only one way, i.e., 3411409 + 483025 = 1847^2 + 695^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3894394 and 3894403.

It is not an unprimeable number, because it can be changed into a prime (3894431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 973607 + ... + 973610.

Almost surely, 2^3894434 is an apocalyptic number.

3894434 is a deficient number, since it is larger than the sum of its proper divisors (1947220).

3894434 is a wasteful number, since it uses less digits than its factorization.

3894434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947219.

The product of its digits is 41472, while the sum is 35.

The square root of 3894434 is about 1973.4320358198. The cubic root of 3894434 is about 157.3311737630.

The spelling of 3894434 in words is "three million, eight hundred ninety-four thousand, four hundred thirty-four".