49610721 has 8 divisors (see below), whose sum is σ = 66323680. Its totient is φ = 32985792.

The previous prime is 49610683. The next prime is 49610741. The reversal of 49610721 is 12701694.

It is a happy number.

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

It is not a de Polignac number, because 49610721 - 2¹¹ = 49608673 is a prime.

It is a super-2 number, since 2×49610721² = 4922447276279682, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49610741) 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, 20680 + ... + 22953.

It is an arithmetic number, because the mean of its divisors is an integer number (8290460).

Almost surely, 2^49610721 is an apocalyptic number.

It is an amenable number.

49610721 is a deficient number, since it is larger than the sum of its proper divisors (16712959).

49610721 is a wasteful number, since it uses less digits than its factorization.

49610721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44015.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 49610721 is about 7043.4878433912. The cubic root of 49610721 is about 367.4445804718. Note that the first 3 decimals are identical.

The spelling of 49610721 in words is "forty-nine million, six hundred ten thousand, seven hundred twenty-one".