48623721 has 4 divisors (see below), whose sum is σ = 64831632. Its totient is φ = 32415812.

The previous prime is 48623719. The next prime is 48623759. The reversal of 48623721 is 12732684.

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 a cyclic number.

It is not a de Polignac number, because 48623721 - 2¹ = 48623719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (48623321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8103951 + ... + 8103956.

It is an arithmetic number, because the mean of its divisors is an integer number (16207908).

Almost surely, 2^48623721 is an apocalyptic number.

It is an amenable number.

48623721 is a deficient number, since it is larger than the sum of its proper divisors (16207911).

48623721 is a wasteful number, since it uses less digits than its factorization.

48623721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16207910.

The product of its digits is 16128, while the sum is 33.

The square root of 48623721 is about 6973.0711311444. The cubic root of 48623721 is about 364.9914828813.

The spelling of 48623721 in words is "forty-eight million, six hundred twenty-three thousand, seven hundred twenty-one".