49739471 has 4 divisors (see below), whose sum is σ = 49765392. Its totient is φ = 49713552.

The previous prime is 49739429. The next prime is 49739479. The reversal of 49739471 is 17493794.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49739471 is a prime.

It is a super-3 number, since 3×49739471³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49739479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9830 + ... + 14003.

It is an arithmetic number, because the mean of its divisors is an integer number (12441348).

Almost surely, 2^49739471 is an apocalyptic number.

49739471 is a deficient number, since it is larger than the sum of its proper divisors (25921).

49739471 is a wasteful number, since it uses less digits than its factorization.

49739471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25920.

The product of its digits is 190512, while the sum is 44.

The square root of 49739471 is about 7052.6215693173. The cubic root of 49739471 is about 367.7621705854.

The spelling of 49739471 in words is "forty-nine million, seven hundred thirty-nine thousand, four hundred seventy-one".