3603634 has 4 divisors (see below), whose sum is σ = 5405454. Its totient is φ = 1801816.

The previous prime is 3603623. The next prime is 3603659. The reversal of 3603634 is 4363063.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4363063 = 293 ⋅14891.

It can be written as a sum of positive squares in only one way, i.e., 2387025 + 1216609 = 1545^2 + 1103^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3603599 and 3603608.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 900907 + ... + 900910.

Almost surely, 2^3603634 is an apocalyptic number.

3603634 is a deficient number, since it is larger than the sum of its proper divisors (1801820).

3603634 is a wasteful number, since it uses less digits than its factorization.

3603634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801819.

The product of its (nonzero) digits is 3888, while the sum is 25.

The square root of 3603634 is about 1898.3239976358. The cubic root of 3603634 is about 153.3134389228.

Adding to 3603634 its reverse (4363063), we get a palindrome (7966697).

The spelling of 3603634 in words is "three million, six hundred three thousand, six hundred thirty-four".