3721934 has 4 divisors (see below), whose sum is σ = 5582904. Its totient is φ = 1860966.

The previous prime is 3721933. The next prime is 3721943. The reversal of 3721934 is 4391273.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4391273 = 1627 ⋅2699.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3721897 and 3721906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3721931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 930482 + ... + 930485.

It is an arithmetic number, because the mean of its divisors is an integer number (1395726).

Almost surely, 2^3721934 is an apocalyptic number.

3721934 is a deficient number, since it is larger than the sum of its proper divisors (1860970).

3721934 is a wasteful number, since it uses less digits than its factorization.

3721934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860969.

The product of its digits is 4536, while the sum is 29.

The square root of 3721934 is about 1929.2314531958. The cubic root of 3721934 is about 154.9730650387.

The spelling of 3721934 in words is "three million, seven hundred twenty-one thousand, nine hundred thirty-four".