49662729 has 12 divisors (see below), whose sum is σ = 75954996. Its totient is φ = 31160832.

The previous prime is 49662707. The next prime is 49662731. The reversal of 49662729 is 92726694.

It can be written as a sum of positive squares in 2 ways, for example, as 20793600 + 28869129 = 4560^2 + 5373^2 .

It is not a de Polignac number, because 49662729 - 2¹⁵ = 49629961 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49662779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 162144 + ... + 162449.

It is an arithmetic number, because the mean of its divisors is an integer number (6329583).

Almost surely, 2^49662729 is an apocalyptic number.

It is an amenable number.

49662729 is a deficient number, since it is larger than the sum of its proper divisors (26292267).

49662729 is a wasteful number, since it uses less digits than its factorization.

49662729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324616 (or 324613 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 49662729 is about 7047.1787972209. The cubic root of 49662729 is about 367.5729356836.

The spelling of 49662729 in words is "forty-nine million, six hundred sixty-two thousand, seven hundred twenty-nine".