49972737 has 4 divisors (see below), whose sum is σ = 66630320. Its totient is φ = 33315156.

The previous prime is 49972733. The next prime is 49972763. The reversal of 49972737 is 73727994.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 49972737 - 2² = 49972733 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49972733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8328787 + ... + 8328792.

It is an arithmetic number, because the mean of its divisors is an integer number (16657580).

Almost surely, 2^49972737 is an apocalyptic number.

It is an amenable number.

49972737 is a deficient number, since it is larger than the sum of its proper divisors (16657583).

49972737 is a wasteful number, since it uses less digits than its factorization.

49972737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16657582.

The product of its digits is 666792, while the sum is 48.

The square root of 49972737 is about 7069.1397637902. The cubic root of 49972737 is about 368.3361791899.

The spelling of 49972737 in words is "forty-nine million, nine hundred seventy-two thousand, seven hundred thirty-seven".