49678829 has 4 divisors (see below), whose sum is σ = 49838880. Its totient is φ = 49518780.

The previous prime is 49678819. The next prime is 49678831. The reversal of 49678829 is 92887694.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49678829 - 2⁴ = 49678813 is a prime.

It is a super-2 number, since 2×49678829² = 4935972101622482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49678819) 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, 79559 + ... + 80180.

It is an arithmetic number, because the mean of its divisors is an integer number (12459720).

Almost surely, 2^49678829 is an apocalyptic number.

It is an amenable number.

49678829 is a deficient number, since it is larger than the sum of its proper divisors (160051).

49678829 is a wasteful number, since it uses less digits than its factorization.

49678829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160050.

The product of its digits is 1741824, while the sum is 53.

The square root of 49678829 is about 7048.3210057431. The cubic root of 49678829 is about 367.6126521537.

The spelling of 49678829 in words is "forty-nine million, six hundred seventy-eight thousand, eight hundred twenty-nine".