3542785 has 16 divisors (see below), whose sum is σ = 4490640. Its totient is φ = 2679040.

The previous prime is 3542779. The next prime is 3542809. The reversal of 3542785 is 5872453.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 4624 + 3538161 = 68^2 + 1881^2 .

It is not a de Polignac number, because 3542785 - 2⁵ = 3542753 is a prime.

It is a super-3 number, since 3×3542785³ (a number of 21 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3542785.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7455 + ... + 7915.

It is an arithmetic number, because the mean of its divisors is an integer number (280665).

Almost surely, 2^3542785 is an apocalyptic number.

3542785 is the 1537-th pentagonal number.

It is an amenable number.

3542785 is a deficient number, since it is larger than the sum of its proper divisors (947855).

3542785 is a wasteful number, since it uses less digits than its factorization.

3542785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548.

The product of its digits is 33600, while the sum is 34.

The square root of 3542785 is about 1882.2287321152. The cubic root of 3542785 is about 152.4456135007.

The spelling of 3542785 in words is "three million, five hundred forty-two thousand, seven hundred eighty-five".