46870639 has 4 divisors (see below), whose sum is σ = 46884400. Its totient is φ = 46856880.

The previous prime is 46870627. The next prime is 46870643. The reversal of 46870639 is 93607864.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 46870639 - 2¹³ = 46862447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 46870595 and 46870604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46870679) 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, 2419 + ... + 9979.

It is an arithmetic number, because the mean of its divisors is an integer number (11721100).

Almost surely, 2^46870639 is an apocalyptic number.

46870639 is a deficient number, since it is larger than the sum of its proper divisors (13761).

46870639 is an equidigital number, since it uses as much as digits as its factorization.

46870639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13760.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 46870639 is about 6846.2134789970. The cubic root of 46870639 is about 360.5512106294.

It can be divided in two parts, 46870 and 639, that multiplied together give a triangular number (29949930 = T₇₇₃₉).

The spelling of 46870639 in words is "forty-six million, eight hundred seventy thousand, six hundred thirty-nine".