3505749 has 8 divisors (see below), whose sum is σ = 5033952. Its totient is φ = 2157360.

The previous prime is 3505727. The next prime is 3505751. The reversal of 3505749 is 9475053.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3505749 - 2⁸ = 3505493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3505849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44907 + ... + 44984.

It is an arithmetic number, because the mean of its divisors is an integer number (629244).

Almost surely, 2^3505749 is an apocalyptic number.

3505749 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3505749 is a deficient number, since it is larger than the sum of its proper divisors (1528203).

3505749 is a wasteful number, since it uses less digits than its factorization.

3505749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89907.

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 3505749 is about 1872.3645478378. The cubic root of 3505749 is about 151.9125333576.

The spelling of 3505749 in words is "three million, five hundred five thousand, seven hundred forty-nine".