49989785 has 4 divisors (see below), whose sum is σ = 59987748. Its totient is φ = 39991824.

The previous prime is 49989773. The next prime is 49989791. The reversal of 49989785 is 58798994.

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 14622976 + 35366809 = 3824^2 + 5947^2 .

It is a cyclic number.

It is not a de Polignac number, because 49989785 - 2⁴ = 49989769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4998974 + ... + 4998983.

It is an arithmetic number, because the mean of its divisors is an integer number (14996937).

Almost surely, 2^49989785 is an apocalyptic number.

It is an amenable number.

49989785 is a deficient number, since it is larger than the sum of its proper divisors (9997963).

49989785 is an equidigital number, since it uses as much as digits as its factorization.

49989785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9997962.

The product of its digits is 6531840, while the sum is 59.

The square root of 49989785 is about 7070.3454653928. The cubic root of 49989785 is about 368.3780599008.

The spelling of 49989785 in words is "forty-nine million, nine hundred eighty-nine thousand, seven hundred eighty-five".