49989659 has 2 divisors, whose sum is σ = 49989660. Its totient is φ = 49989658.

The previous prime is 49989637. The next prime is 49989671. The reversal of 49989659 is 95698994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49989659 - 2¹² = 49985563 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 49989598 and 49989607.

It is not a weakly prime, because it can be changed into another prime (49989559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24994829 + 24994830.

It is an arithmetic number, because the mean of its divisors is an integer number (24994830).

Almost surely, 2^49989659 is an apocalyptic number.

49989659 is a deficient number, since it is larger than the sum of its proper divisors (1).

49989659 is an equidigital number, since it uses as much as digits as its factorization.

49989659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6298560, while the sum is 59.

The square root of 49989659 is about 7070.3365549315. The cubic root of 49989659 is about 368.3777503998.

The spelling of 49989659 in words is "forty-nine million, nine hundred eighty-nine thousand, six hundred fifty-nine".