48242921 has 4 divisors (see below), whose sum is σ = 49906500. Its totient is φ = 46579344.

The previous prime is 48242917. The next prime is 48242927. The reversal of 48242921 is 12924284.

It is a happy number.

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 21576025 + 26666896 = 4645^2 + 5164^2 .

It is a cyclic number.

It is not a de Polignac number, because 48242921 - 2² = 48242917 is a prime.

It is a super-2 number, since 2×48242921² = 4654758853224482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48242927) 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, 831746 + ... + 831803.

It is an arithmetic number, because the mean of its divisors is an integer number (12476625).

Almost surely, 2^48242921 is an apocalyptic number.

It is an amenable number.

48242921 is a deficient number, since it is larger than the sum of its proper divisors (1663579).

48242921 is a wasteful number, since it uses less digits than its factorization.

48242921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1663578.

The product of its digits is 9216, while the sum is 32.

The square root of 48242921 is about 6945.7124184636. The cubic root of 48242921 is about 364.0361660519.

The spelling of 48242921 in words is "forty-eight million, two hundred forty-two thousand, nine hundred twenty-one".