3524645 has 4 divisors (see below), whose sum is σ = 4229580. Its totient is φ = 2819712.

The previous prime is 3524621. The next prime is 3524699. The reversal of 3524645 is 5464253.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5464253 = 103 ⋅53051.

It can be written as a sum of positive squares in 2 ways, for example, as 1069156 + 2455489 = 1034^2 + 1567^2 .

It is a cyclic number.

It is not a de Polignac number, because 3524645 - 2¹² = 3520549 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352460 + ... + 352469.

It is an arithmetic number, because the mean of its divisors is an integer number (1057395).

Almost surely, 2^3524645 is an apocalyptic number.

It is an amenable number.

3524645 is a deficient number, since it is larger than the sum of its proper divisors (704935).

3524645 is an equidigital number, since it uses as much as digits as its factorization.

3524645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704934.

The product of its digits is 14400, while the sum is 29.

The square root of 3524645 is about 1877.4037924751. The cubic root of 3524645 is about 152.1849808158.

Adding to 3524645 its reverse (5464253), we get a palindrome (8988898).

The spelling of 3524645 in words is "three million, five hundred twenty-four thousand, six hundred forty-five".