2312649 has 12 divisors (see below), whose sum is σ = 3355716. Its totient is φ = 1534752.

The previous prime is 2312641. The next prime is 2312677. The reversal of 2312649 is 9462132.

2312649 is a `hidden beast` number, since 2 + 3 + 12 + 649 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2082249 + 230400 = 1443^2 + 480^2 .

It is not a de Polignac number, because 2312649 - 2³ = 2312641 is a prime.

2312649 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2312641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2199 + ... + 3075.

It is an arithmetic number, because the mean of its divisors is an integer number (279643).

2^2312649 is an apocalyptic number.

It is an amenable number.

2312649 is a deficient number, since it is larger than the sum of its proper divisors (1043067).

2312649 is a wasteful number, since it uses less digits than its factorization.

2312649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176 (or 1173 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 2312649 is about 1520.7396226836. The cubic root of 2312649 is about 132.2421519232.

The spelling of 2312649 in words is "two million, three hundred twelve thousand, six hundred forty-nine".