3648431 has 8 divisors (see below), whose sum is σ = 3734640. Its totient is φ = 3563392.

The previous prime is 3648427. The next prime is 3648439. The reversal of 3648431 is 1348463.

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

It is a cyclic number.

It is not a de Polignac number, because 3648431 - 2² = 3648427 is a prime.

It is a super-2 number, since 2×3648431² = 26622097523522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3648394 and 3648403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3648439) 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, 9185 + ... + 9573.

It is an arithmetic number, because the mean of its divisors is an integer number (466830).

Almost surely, 2^3648431 is an apocalyptic number.

3648431 is a deficient number, since it is larger than the sum of its proper divisors (86209).

3648431 is a wasteful number, since it uses less digits than its factorization.

3648431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585.

The product of its digits is 6912, while the sum is 29.

The square root of 3648431 is about 1910.0866472493. The cubic root of 3648431 is about 153.9461075269.

Subtracting from 3648431 its reverse (1348463), we obtain a cube (2299968 = 132³).

The spelling of 3648431 in words is "three million, six hundred forty-eight thousand, four hundred thirty-one".