48435721 has 4 divisors (see below), whose sum is σ = 48628944. Its totient is φ = 48242500.

The previous prime is 48435691. The next prime is 48435743. The reversal of 48435721 is 12753484.

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 48435721 - 2⁷ = 48435593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48435221) 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, 96235 + ... + 96736.

It is an arithmetic number, because the mean of its divisors is an integer number (12157236).

Almost surely, 2^48435721 is an apocalyptic number.

It is an amenable number.

48435721 is a deficient number, since it is larger than the sum of its proper divisors (193223).

48435721 is a wasteful number, since it uses less digits than its factorization.

48435721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193222.

The product of its digits is 26880, while the sum is 34.

The square root of 48435721 is about 6959.5776452311. The cubic root of 48435721 is about 364.5204711761.

It can be divided in two parts, 484 and 35721, that multiplied together give a square (17288964 = 4158²).

The spelling of 48435721 in words is "forty-eight million, four hundred thirty-five thousand, seven hundred twenty-one".