49802989 has 2 divisors, whose sum is σ = 49802990. Its totient is φ = 49802988.

The previous prime is 49802983. The next prime is 49803007. The reversal of 49802989 is 98920894.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49702500 + 100489 = 7050^2 + 317^2 .

It is a cyclic number.

It is not a de Polignac number, because 49802989 - 2⁷ = 49802861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49802983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24901494 + 24901495.

It is an arithmetic number, because the mean of its divisors is an integer number (24901495).

Almost surely, 2^49802989 is an apocalyptic number.

It is an amenable number.

49802989 is a deficient number, since it is larger than the sum of its proper divisors (1).

49802989 is an equidigital number, since it uses as much as digits as its factorization.

49802989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 49802989 is about 7057.1232807710. The cubic root of 49802989 is about 367.9186498071.

The spelling of 49802989 in words is "forty-nine million, eight hundred two thousand, nine hundred eighty-nine".