46687639 has 4 divisors (see below), whose sum is σ = 46840024. Its totient is φ = 46535256.

The previous prime is 46687633. The next prime is 46687679. The reversal of 46687639 is 93678664.

46687639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 46687639 - 2⁵ = 46687607 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 46687592 and 46687601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46687633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75732 + ... + 76345.

It is an arithmetic number, because the mean of its divisors is an integer number (11710006).

Almost surely, 2^46687639 is an apocalyptic number.

46687639 is a deficient number, since it is larger than the sum of its proper divisors (152385).

46687639 is a wasteful number, since it uses less digits than its factorization.

46687639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152384.

The product of its digits is 1306368, while the sum is 49.

The square root of 46687639 is about 6832.8353558387. The cubic root of 46687639 is about 360.0813576411.

Subtracting 46687639 from its reverse (93678664), we obtain a square (46991025 = 6855²).

The spelling of 46687639 in words is "forty-six million, six hundred eighty-seven thousand, six hundred thirty-nine".