3528506 has 4 divisors (see below), whose sum is σ = 5292762. Its totient is φ = 1764252.

The previous prime is 3528479. The next prime is 3528521. The reversal of 3528506 is 6058253.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2076481 + 1452025 = 1441^2 + 1205^2 .

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 882125 + ... + 882128.

Almost surely, 2^3528506 is an apocalyptic number.

3528506 is a deficient number, since it is larger than the sum of its proper divisors (1764256).

3528506 is a wasteful number, since it uses less digits than its factorization.

3528506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764255.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 3528506 is about 1878.4317927463. The cubic root of 3528506 is about 152.2405298417.

The spelling of 3528506 in words is "three million, five hundred twenty-eight thousand, five hundred six".