46687649 has 4 divisors (see below), whose sum is σ = 46716036. Its totient is φ = 46659264.

The previous prime is 46687633. The next prime is 46687679. The reversal of 46687649 is 94678664.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25000000 + 21687649 = 5000^2 + 4657^2 .

It is a cyclic number.

It is not a de Polignac number, because 46687649 - 2⁴ = 46687633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 46687597 and 46687606.

It is not an unprimeable number, because it can be changed into a prime (46687679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11564 + ... + 15069.

It is an arithmetic number, because the mean of its divisors is an integer number (11679009).

Almost surely, 2^46687649 is an apocalyptic number.

It is an amenable number.

46687649 is a deficient number, since it is larger than the sum of its proper divisors (28387).

46687649 is a wasteful number, since it uses less digits than its factorization.

46687649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28386.

The product of its digits is 1741824, while the sum is 50.

The square root of 46687649 is about 6832.8360875994. The cubic root of 46687649 is about 360.0813833497.

The spelling of 46687649 in words is "forty-six million, six hundred eighty-seven thousand, six hundred forty-nine".