49469689 has 2 divisors, whose sum is σ = 49469690. Its totient is φ = 49469688.

The previous prime is 49469687. The next prime is 49469701. The reversal of 49469689 is 98696494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31449664 + 18020025 = 5608^2 + 4245^2 .

It is a cyclic number.

It is not a de Polignac number, because 49469689 - 2¹ = 49469687 is a prime.

Together with 49469687, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (49469687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24734844 + 24734845.

It is an arithmetic number, because the mean of its divisors is an integer number (24734845).

Almost surely, 2^49469689 is an apocalyptic number.

It is an amenable number.

49469689 is a deficient number, since it is larger than the sum of its proper divisors (1).

49469689 is an equidigital number, since it uses as much as digits as its factorization.

49469689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3359232, while the sum is 55.

The square root of 49469689 is about 7033.4692008994. The cubic root of 49469689 is about 367.0960628782.

The spelling of 49469689 in words is "forty-nine million, four hundred sixty-nine thousand, six hundred eighty-nine".