49679999 has 2 divisors, whose sum is σ = 49680000. Its totient is φ = 49679998.

The previous prime is 49679963. The next prime is 49680017. The reversal of 49679999 is 99997694.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49679999 - 2¹² = 49675903 is a prime.

49679999 is a modest number, since divided by 9999 gives 4967 as remainder.

It is a plaindrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49679909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24839999 + 24840000.

It is an arithmetic number, because the mean of its divisors is an integer number (24840000).

Almost surely, 2^49679999 is an apocalyptic number.

49679999 is a deficient number, since it is larger than the sum of its proper divisors (1).

49679999 is an equidigital number, since it uses as much as digits as its factorization.

49679999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9920232, while the sum is 62.

The square root of 49679999 is about 7048.4040037444. The cubic root of 49679999 is about 367.6155380471.

The spelling of 49679999 in words is "forty-nine million, six hundred seventy-nine thousand, nine hundred ninety-nine".