49729121 has 8 divisors (see below), whose sum is σ = 54075840. Its totient is φ = 45456912.

The previous prime is 49729079. The next prime is 49729129. The reversal of 49729121 is 12192794.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49729121 - 2²² = 45534817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49729129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17231 + ... + 19908.

It is an arithmetic number, because the mean of its divisors is an integer number (6759480).

Almost surely, 2^49729121 is an apocalyptic number.

It is an amenable number.

49729121 is a deficient number, since it is larger than the sum of its proper divisors (4346719).

49729121 is a wasteful number, since it uses less digits than its factorization.

49729121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37255.

The product of its digits is 9072, while the sum is 35.

The square root of 49729121 is about 7051.8877614437. The cubic root of 49729121 is about 367.7366603121.

It can be divided in two parts, 49729 and 121, that multiplied together give a square (6017209 = 2453²).

The spelling of 49729121 in words is "forty-nine million, seven hundred twenty-nine thousand, one hundred twenty-one".