3492981 has 6 divisors (see below), whose sum is σ = 5045430. Its totient is φ = 2328648.

The previous prime is 3492971. The next prime is 3492989. The reversal of 3492981 is 1892943.

It can be written as a sum of positive squares in only one way, i.e., 3481956 + 11025 = 1866^2 + 105^2 .

It is not a de Polignac number, because 3492981 - 2⁶ = 3492917 is a prime.

It is a super-2 number, since 2×3492981² = 24401832532722, which contains 22 as substring.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3492989) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 194046 + ... + 194063.

It is an arithmetic number, because the mean of its divisors is an integer number (840905).

Almost surely, 2^3492981 is an apocalyptic number.

It is an amenable number.

3492981 is a deficient number, since it is larger than the sum of its proper divisors (1552449).

3492981 is a wasteful number, since it uses less digits than its factorization.

3492981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388115 (or 388112 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 3492981 is about 1868.9518452865. The cubic root of 3492981 is about 151.7278863001.

The spelling of 3492981 in words is "three million, four hundred ninety-two thousand, nine hundred eighty-one".