49084721 has 12 divisors (see below), whose sum is σ = 57220020. Its totient is φ = 41983200.

The previous prime is 49084703. The next prime is 49084741. The reversal of 49084721 is 12748094.

It can be written as a sum of positive squares in 2 ways, for example, as 21669025 + 27415696 = 4655^2 + 5236^2 .

It is a de Polignac number, because none of the positive numbers 2^k-49084721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49084741) 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, 33635 + ... + 35063.

It is an arithmetic number, because the mean of its divisors is an integer number (4768335).

Almost surely, 2^49084721 is an apocalyptic number.

It is an amenable number.

49084721 is a deficient number, since it is larger than the sum of its proper divisors (8135299).

49084721 is a wasteful number, since it uses less digits than its factorization.

49084721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144 (or 2137 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 49084721 is about 7006.0488864980. The cubic root of 49084721 is about 366.1413475571.

The spelling of 49084721 in words is "forty-nine million, eighty-four thousand, seven hundred twenty-one".