49279657 has 8 divisors (see below), whose sum is σ = 56569536. Its totient is φ = 42052272.

The previous prime is 49279619. The next prime is 49279661. The reversal of 49279657 is 75697294.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49279657 - 2²³ = 40891049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49279657.

It is not an unprimeable number, because it can be changed into a prime (49279667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13918 + ... + 17095.

It is an arithmetic number, because the mean of its divisors is an integer number (7071192).

Almost surely, 2^49279657 is an apocalyptic number.

It is an amenable number.

49279657 is a deficient number, since it is larger than the sum of its proper divisors (7289879).

49279657 is a wasteful number, since it uses less digits than its factorization.

49279657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31247.

The product of its digits is 952560, while the sum is 49.

The square root of 49279657 is about 7019.9470795726. The cubic root of 49279657 is about 366.6254075705.

The spelling of 49279657 in words is "forty-nine million, two hundred seventy-nine thousand, six hundred fifty-seven".