3461981 has 4 divisors (see below), whose sum is σ = 3492732. Its totient is φ = 3431232.

The previous prime is 3461951. The next prime is 3461989. The reversal of 3461981 is 1891643.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1891643 = 13 ⋅145511.

It can be written as a sum of positive squares in 2 ways, for example, as 1585081 + 1876900 = 1259^2 + 1370^2 .

It is a cyclic number.

It is not a de Polignac number, because 3461981 - 2¹⁴ = 3445597 is a prime.

It is a super-2 number, since 2×3461981² = 23970624888722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3461989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15206 + ... + 15431.

It is an arithmetic number, because the mean of its divisors is an integer number (873183).

Almost surely, 2^3461981 is an apocalyptic number.

It is an amenable number.

3461981 is a deficient number, since it is larger than the sum of its proper divisors (30751).

3461981 is a wasteful number, since it uses less digits than its factorization.

3461981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30750.

The product of its digits is 5184, while the sum is 32.

The square root of 3461981 is about 1860.6399436753. The cubic root of 3461981 is about 151.2776931739.

The spelling of 3461981 in words is "three million, four hundred sixty-one thousand, nine hundred eighty-one".