3630947 has 4 divisors (see below), whose sum is σ = 3680760. Its totient is φ = 3581136.

The previous prime is 3630943. The next prime is 3630953. The reversal of 3630947 is 7490363.

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 3630947 - 2² = 3630943 is a prime.

It is a super-2 number, since 2×3630947² = 26367552233618, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3630943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24797 + ... + 24942.

It is an arithmetic number, because the mean of its divisors is an integer number (920190).

Almost surely, 2^3630947 is an apocalyptic number.

3630947 is a deficient number, since it is larger than the sum of its proper divisors (49813).

3630947 is an equidigital number, since it uses as much as digits as its factorization.

3630947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49812.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 3630947 is about 1905.5043951668. The cubic root of 3630947 is about 153.6998002991.

The spelling of 3630947 in words is "three million, six hundred thirty thousand, nine hundred forty-seven".