49934989 has 4 divisors (see below), whose sum is σ = 53776156. Its totient is φ = 46093824.

The previous prime is 49934981. The next prime is 49934999. The reversal of 49934989 is 98943994.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4169764 + 45765225 = 2042^2 + 6765^2 .

It is a cyclic number.

It is not a de Polignac number, because 49934989 - 2³ = 49934981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49934981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1920564 + ... + 1920589.

It is an arithmetic number, because the mean of its divisors is an integer number (13444039).

Almost surely, 2^49934989 is an apocalyptic number.

It is an amenable number.

49934989 is a deficient number, since it is larger than the sum of its proper divisors (3841167).

49934989 is a wasteful number, since it uses less digits than its factorization.

49934989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3841166.

The product of its digits is 2519424, while the sum is 55.

The square root of 49934989 is about 7066.4693447294. The cubic root of 49934989 is about 368.2434122315.

The spelling of 49934989 in words is "forty-nine million, nine hundred thirty-four thousand, nine hundred eighty-nine".