49679757 has 8 divisors (see below), whose sum is σ = 73599680. Its totient is φ = 33119820.

The previous prime is 49679731. The next prime is 49679759. The reversal of 49679757 is 75797694.

It is a happy number.

It is not a de Polignac number, because 49679757 - 2¹⁴ = 49663373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49679759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 919969 + ... + 920022.

It is an arithmetic number, because the mean of its divisors is an integer number (9199960).

Almost surely, 2^49679757 is an apocalyptic number.

It is an amenable number.

49679757 is a deficient number, since it is larger than the sum of its proper divisors (23919923).

49679757 is a wasteful number, since it uses less digits than its factorization.

49679757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840000 (or 1839994 counting only the distinct ones).

The product of its digits is 3333960, while the sum is 54.

The square root of 49679757 is about 7048.3868367166. The cubic root of 49679757 is about 367.6149411396.

The spelling of 49679757 in words is "forty-nine million, six hundred seventy-nine thousand, seven hundred fifty-seven".