48103721 has 4 divisors (see below), whose sum is σ = 49762500. Its totient is φ = 46444944.

The previous prime is 48103709. The next prime is 48103733. The reversal of 48103721 is 12730184.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (48103709) and next prime (48103733).

It can be written as a sum of positive squares in 2 ways, for example, as 36132121 + 11971600 = 6011^2 + 3460^2 .

It is a cyclic number.

It is not a de Polignac number, because 48103721 - 2¹⁰ = 48102697 is a prime.

It is a super-3 number, since 3×48103721³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48103751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 829346 + ... + 829403.

It is an arithmetic number, because the mean of its divisors is an integer number (12440625).

Almost surely, 2^48103721 is an apocalyptic number.

It is an amenable number.

48103721 is a deficient number, since it is larger than the sum of its proper divisors (1658779).

48103721 is a wasteful number, since it uses less digits than its factorization.

48103721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658778.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 48103721 is about 6935.6846093230. The cubic root of 48103721 is about 363.6856990846.

The spelling of 48103721 in words is "forty-eight million, one hundred three thousand, seven hundred twenty-one".