3648631 has 8 divisors (see below), whose sum is σ = 4271904. Its totient is φ = 3050880.

The previous prime is 3648587. The next prime is 3648643. The reversal of 3648631 is 1368463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3648631 - 2¹¹ = 3646583 is a prime.

It is a super-2 number, since 2×3648631² = 26625016348322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3648593 and 3648602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3648661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6070 + ... + 6643.

It is an arithmetic number, because the mean of its divisors is an integer number (533988).

Almost surely, 2^3648631 is an apocalyptic number.

3648631 is a deficient number, since it is larger than the sum of its proper divisors (623273).

3648631 is a wasteful number, since it uses less digits than its factorization.

3648631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12761.

The product of its digits is 10368, while the sum is 31.

The square root of 3648631 is about 1910.1390001777. The cubic root of 3648631 is about 153.9489204858.

The spelling of 3648631 in words is "three million, six hundred forty-eight thousand, six hundred thirty-one".