4311649 has 4 divisors (see below), whose sum is σ = 4499136. Its totient is φ = 4124164.

The previous prime is 4311631. The next prime is 4311667. The reversal of 4311649 is 9461134.

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 an interprime number because it is at equal distance from previous prime (4311631) and next prime (4311667).

It is a cyclic number.

It is not a de Polignac number, because 4311649 - 2¹³ = 4303457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4318649) 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, 93709 + ... + 93754.

It is an arithmetic number, because the mean of its divisors is an integer number (1124784).

Almost surely, 2^4311649 is an apocalyptic number.

It is an amenable number.

4311649 is a deficient number, since it is larger than the sum of its proper divisors (187487).

4311649 is a wasteful number, since it uses less digits than its factorization.

4311649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187486.

The product of its digits is 2592, while the sum is 28.

The square root of 4311649 is about 2076.4510588983. The cubic root of 4311649 is about 162.7600443855.

It can be divided in two parts, 431 and 1649, that added together give a triangular number (2080 = T₆₄).

The spelling of 4311649 in words is "four million, three hundred eleven thousand, six hundred forty-nine".