49249679 has 4 divisors (see below), whose sum is σ = 49367640. Its totient is φ = 49131720.

The previous prime is 49249633. The next prime is 49249687. The reversal of 49249679 is 97694294.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49249679 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 (49249619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58352 + ... + 59189.

It is an arithmetic number, because the mean of its divisors is an integer number (12341910).

Almost surely, 2^49249679 is an apocalyptic number.

49249679 is a deficient number, since it is larger than the sum of its proper divisors (117961).

49249679 is a wasteful number, since it uses less digits than its factorization.

49249679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117960.

The product of its digits is 979776, while the sum is 50.

The square root of 49249679 is about 7017.8115534688. The cubic root of 49249679 is about 366.5510501411.

The spelling of 49249679 in words is "forty-nine million, two hundred forty-nine thousand, six hundred seventy-nine".