49616389 has 2 divisors, whose sum is σ = 49616390. Its totient is φ = 49616388.

The previous prime is 49616383. The next prime is 49616407. The reversal of 49616389 is 98361694.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26863489 + 22752900 = 5183^2 + 4770^2 .

It is a cyclic number.

It is not a de Polignac number, because 49616389 - 2²¹ = 47519237 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49616383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24808194 + 24808195.

It is an arithmetic number, because the mean of its divisors is an integer number (24808195).

Almost surely, 2^49616389 is an apocalyptic number.

It is an amenable number.

49616389 is a deficient number, since it is larger than the sum of its proper divisors (1).

49616389 is an equidigital number, since it uses as much as digits as its factorization.

49616389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 46.

The square root of 49616389 is about 7043.8901893769. The cubic root of 49616389 is about 367.4585733920.

It can be divided in two parts, 49616 and 389, that added together give a palindrome (50005).

The spelling of 49616389 in words is "forty-nine million, six hundred sixteen thousand, three hundred eighty-nine".