49700689 has 2 divisors, whose sum is σ = 49700690. Its totient is φ = 49700688.

The previous prime is 49700687. The next prime is 49700737. The reversal of 49700689 is 98600794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49238289 + 462400 = 7017^2 + 680^2 .

It is a cyclic number.

It is not a de Polignac number, because 49700689 - 2¹ = 49700687 is a prime.

Together with 49700687, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (49700681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24850344 + 24850345.

It is an arithmetic number, because the mean of its divisors is an integer number (24850345).

Almost surely, 2^49700689 is an apocalyptic number.

It is an amenable number.

49700689 is a deficient number, since it is larger than the sum of its proper divisors (1).

49700689 is an equidigital number, since it uses as much as digits as its factorization.

49700689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 49700689 is about 7049.8715591137. The cubic root of 49700689 is about 367.6665640134. Note that the first 3 decimals are identical.

The spelling of 49700689 in words is "forty-nine million, seven hundred thousand, six hundred eighty-nine".