49646239 has 4 divisors (see below), whose sum is σ = 52566624. Its totient is φ = 46725856.

The previous prime is 49646227. The next prime is 49646269. The reversal of 49646239 is 93264694.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93264694 = 2 ⋅46632347.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49646239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49646195 and 49646204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49646269) 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, 1460167 + ... + 1460200.

It is an arithmetic number, because the mean of its divisors is an integer number (13141656).

Almost surely, 2^49646239 is an apocalyptic number.

49646239 is a deficient number, since it is larger than the sum of its proper divisors (2920385).

49646239 is a wasteful number, since it uses less digits than its factorization.

49646239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920384.

The product of its digits is 279936, while the sum is 43.

The square root of 49646239 is about 7046.0087283511. The cubic root of 49646239 is about 367.5322482384.

The spelling of 49646239 in words is "forty-nine million, six hundred forty-six thousand, two hundred thirty-nine".