3493945 has 24 divisors (see below), whose sum is σ = 5257224. Its totient is φ = 2209536.

The previous prime is 3493939. The next prime is 3493951. The reversal of 3493945 is 5493943.

It is an interprime number because it is at equal distance from previous prime (3493939) and next prime (3493951).

It can be written as a sum of positive squares in 4 ways, for example, as 784 + 3493161 = 28^2 + 1869^2 .

It is not a de Polignac number, because 3493945 - 2³ = 3493937 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2637 + ... + 3733.

It is an arithmetic number, because the mean of its divisors is an integer number (219051).

Almost surely, 2^3493945 is an apocalyptic number.

3493945 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3493945 is a deficient number, since it is larger than the sum of its proper divisors (1763279).

3493945 is a wasteful number, since it uses less digits than its factorization.

3493945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129 (or 1122 counting only the distinct ones).

The product of its digits is 58320, while the sum is 37.

The square root of 3493945 is about 1869.2097260607. The cubic root of 3493945 is about 151.7418430731.

The spelling of 3493945 in words is "three million, four hundred ninety-three thousand, nine hundred forty-five".