4312649 has 4 divisors (see below), whose sum is σ = 4704720. Its totient is φ = 3920580.

The previous prime is 4312643. The next prime is 4312657. The reversal of 4312649 is 9462134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4312649 - 2⁸ = 4312393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4312643) 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, 196019 + ... + 196040.

It is an arithmetic number, because the mean of its divisors is an integer number (1176180).

Almost surely, 2^4312649 is an apocalyptic number.

It is an amenable number.

4312649 is a deficient number, since it is larger than the sum of its proper divisors (392071).

4312649 is a wasteful number, since it uses less digits than its factorization.

4312649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392070.

The product of its digits is 5184, while the sum is 29.

The square root of 4312649 is about 2076.6918404039. The cubic root of 4312649 is about 162.7726263824.

The spelling of 4312649 in words is "four million, three hundred twelve thousand, six hundred forty-nine".