48213217 has 4 divisors (see below), whose sum is σ = 51921940. Its totient is φ = 44504496.

The previous prime is 48213181. The next prime is 48213227. The reversal of 48213217 is 71231284.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9884736 + 38328481 = 3144^2 + 6191^2 .

It is a cyclic number.

It is not a de Polignac number, because 48213217 - 2¹⁵ = 48180449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48213227) 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, 1854342 + ... + 1854367.

It is an arithmetic number, because the mean of its divisors is an integer number (12980485).

Almost surely, 2^48213217 is an apocalyptic number.

It is an amenable number.

48213217 is a deficient number, since it is larger than the sum of its proper divisors (3708723).

48213217 is a wasteful number, since it uses less digits than its factorization.

48213217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708722.

The product of its digits is 2688, while the sum is 28.

The square root of 48213217 is about 6943.5737916436. The cubic root of 48213217 is about 363.9614362599.

The spelling of 48213217 in words is "forty-eight million, two hundred thirteen thousand, two hundred seventeen".