49979646 has 32 divisors (see below), whose sum is σ = 111648000. Its totient is φ = 16572600.

The previous prime is 49979627. The next prime is 49979651. The reversal of 49979646 is 64697994.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 49979592 and 49979601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8421 + ... + 13071.

It is an arithmetic number, because the mean of its divisors is an integer number (3489000).

Almost surely, 2^49979646 is an apocalyptic number.

49979646 is an abundant number, since it is smaller than the sum of its proper divisors (61668354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49979646 is a wasteful number, since it uses less digits than its factorization.

49979646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4861 (or 4855 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 49979646 is about 7069.6284202212. The cubic root of 49979646 is about 368.3531532278.

It can be divided in two parts, 49979 and 646, that added together give a 4-th power (50625 = 15⁴).

The spelling of 49979646 in words is "forty-nine million, nine hundred seventy-nine thousand, six hundred forty-six".