3421738 has 4 divisors (see below), whose sum is σ = 5132610. Its totient is φ = 1710868.

The previous prime is 3421711. The next prime is 3421751. The reversal of 3421738 is 8371243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8371243 = 1091 ⋅7673.

It can be written as a sum of positive squares in only one way, i.e., 2505889 + 915849 = 1583^2 + 957^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 855433 + ... + 855436.

Almost surely, 2^3421738 is an apocalyptic number.

3421738 is a deficient number, since it is larger than the sum of its proper divisors (1710872).

3421738 is a wasteful number, since it uses less digits than its factorization.

3421738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710871.

The product of its digits is 4032, while the sum is 28.

The square root of 3421738 is about 1849.7940425896. The cubic root of 3421738 is about 150.6892429253.

It can be divided in two parts, 342 and 1738, that added together give a triangular number (2080 = T₆₄).

The spelling of 3421738 in words is "three million, four hundred twenty-one thousand, seven hundred thirty-eight".