3634394 has 4 divisors (see below), whose sum is σ = 5451594. Its totient is φ = 1817196.

The previous prime is 3634373. The next prime is 3634417. The reversal of 3634394 is 4934363.

It is a happy number.

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., 2608225 + 1026169 = 1615^2 + 1013^2 .

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 3634394.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 908597 + ... + 908600.

Almost surely, 2^3634394 is an apocalyptic number.

3634394 is a deficient number, since it is larger than the sum of its proper divisors (1817200).

3634394 is a wasteful number, since it uses less digits than its factorization.

3634394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1817199.

The product of its digits is 23328, while the sum is 32.

The square root of 3634394 is about 1906.4086655279. The cubic root of 3634394 is about 153.7484226599.

The spelling of 3634394 in words is "three million, six hundred thirty-four thousand, three hundred ninety-four".