49709971 has 4 divisors (see below), whose sum is σ = 50268600. Its totient is φ = 49151344.

The previous prime is 49709951. The next prime is 49709983. The reversal of 49709971 is 17990794.

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

It is a cyclic number.

It is not a de Polignac number, because 49709971 - 2⁵ = 49709939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49709951) 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, 279181 + ... + 279358.

It is an arithmetic number, because the mean of its divisors is an integer number (12567150).

Almost surely, 2^49709971 is an apocalyptic number.

49709971 is a deficient number, since it is larger than the sum of its proper divisors (558629).

49709971 is an equidigital number, since it uses as much as digits as its factorization.

49709971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558628.

The product of its (nonzero) digits is 142884, while the sum is 46.

The square root of 49709971 is about 7050.5298382462. The cubic root of 49709971 is about 367.6894508096.

It can be divided in two parts, 4970 and 9971, that added together give a palindrome (14941).

The spelling of 49709971 in words is "forty-nine million, seven hundred nine thousand, nine hundred seventy-one".