3491938 has 4 divisors (see below), whose sum is σ = 5237910. Its totient is φ = 1745968.

The previous prime is 3491927. The next prime is 3491947. The reversal of 3491938 is 8391943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8391943 = 7 ⋅1198849.

It can be written as a sum of positive squares in only one way, i.e., 2505889 + 986049 = 1583^2 + 993^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3491897 and 3491906.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 872983 + ... + 872986.

Almost surely, 2^3491938 is an apocalyptic number.

3491938 is a deficient number, since it is larger than the sum of its proper divisors (1745972).

3491938 is a wasteful number, since it uses less digits than its factorization.

3491938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745971.

The product of its digits is 23328, while the sum is 37.

The square root of 3491938 is about 1868.6727910472. The cubic root of 3491938 is about 151.7127828742.

The spelling of 3491938 in words is "three million, four hundred ninety-one thousand, nine hundred thirty-eight".