49879867 has 2 divisors, whose sum is σ = 49879868. Its totient is φ = 49879866.

The previous prime is 49879849. The next prime is 49879877. The reversal of 49879867 is 76897894.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49879867 - 2¹¹ = 49877819 is a prime.

It is a super-2 number, since 2×49879867² = 4976002263875378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49879877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24939933 + 24939934.

It is an arithmetic number, because the mean of its divisors is an integer number (24939934).

Almost surely, 2^49879867 is an apocalyptic number.

49879867 is a deficient number, since it is larger than the sum of its proper divisors (1).

49879867 is an equidigital number, since it uses as much as digits as its factorization.

49879867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6096384, while the sum is 58.

The square root of 49879867 is about 7062.5680173716. The cubic root of 49879867 is about 368.1078640765.

The spelling of 49879867 in words is "forty-nine million, eight hundred seventy-nine thousand, eight hundred sixty-seven".