3495749 has 2 divisors, whose sum is σ = 3495750. Its totient is φ = 3495748.

The previous prime is 3495743. The next prime is 3495773. The reversal of 3495749 is 9475943.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3214849 + 280900 = 1793^2 + 530^2 .

It is an emirp because it is prime and its reverse (9475943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3495749 - 2⁴ = 3495733 is a prime.

It is a super-2 number, since 2×3495749² = 24440522142002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3495743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1747874 + 1747875.

It is an arithmetic number, because the mean of its divisors is an integer number (1747875).

Almost surely, 2^3495749 is an apocalyptic number.

It is an amenable number.

3495749 is a deficient number, since it is larger than the sum of its proper divisors (1).

3495749 is an equidigital number, since it uses as much as digits as its factorization.

3495749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 41.

The square root of 3495749 is about 1869.6922206609. The cubic root of 3495749 is about 151.7679544540.

The spelling of 3495749 in words is "three million, four hundred ninety-five thousand, seven hundred forty-nine".