49129867 has 4 divisors (see below), whose sum is σ = 49606960. Its totient is φ = 48652776.

The previous prime is 49129841. The next prime is 49129879. The reversal of 49129867 is 76892194.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76892194 = 2 ⋅38446097.

It is a cyclic number.

It is not a de Polignac number, because 49129867 - 2⁷ = 49129739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49127867) 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, 238392 + ... + 238597.

It is an arithmetic number, because the mean of its divisors is an integer number (12401740).

Almost surely, 2^49129867 is an apocalyptic number.

49129867 is a deficient number, since it is larger than the sum of its proper divisors (477093).

49129867 is a wasteful number, since it uses less digits than its factorization.

49129867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477092.

The product of its digits is 217728, while the sum is 46.

The square root of 49129867 is about 7009.2700761206. The cubic root of 49129867 is about 366.2535668094.

The spelling of 49129867 in words is "forty-nine million, one hundred twenty-nine thousand, eight hundred sixty-seven".