3630251 has 4 divisors (see below), whose sum is σ = 3788112. Its totient is φ = 3472392.

The previous prime is 3630247. The next prime is 3630257. The reversal of 3630251 is 1520363.

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

It is a cyclic number.

It is not a de Polignac number, because 3630251 - 2² = 3630247 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3630257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78896 + ... + 78941.

It is an arithmetic number, because the mean of its divisors is an integer number (947028).

Almost surely, 2^3630251 is an apocalyptic number.

3630251 is a deficient number, since it is larger than the sum of its proper divisors (157861).

3630251 is a wasteful number, since it uses less digits than its factorization.

3630251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157860.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 3630251 is about 1905.3217576042. The cubic root of 3630251 is about 153.6899789956.

The spelling of 3630251 in words is "three million, six hundred thirty thousand, two hundred fifty-one".