2048721 has 16 divisors (see below), whose sum is σ = 2923200. Its totient is φ = 1276224.

The previous prime is 2048699. The next prime is 2048723. The reversal of 2048721 is 1278402.

It is not a de Polignac number, because 2048721 - 2⁷ = 2048593 is a prime.

It is a super-5 number, since 5×2048721⁵ (a number of 33 digits) contains 55555 as substring.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2048691 and 2048700.

It is not an unprimeable number, because it can be changed into a prime (2048723) 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 15 ways as a sum of consecutive naturals, for example, 14670 + ... + 14808.

It is an arithmetic number, because the mean of its divisors is an integer number (182700).

2^2048721 is an apocalyptic number.

It is an amenable number.

2048721 is a deficient number, since it is larger than the sum of its proper divisors (874479).

2048721 is an equidigital number, since it uses as much as digits as its factorization.

2048721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 2048721 is about 1431.3353904658. The cubic root of 2048721 is about 127.0069849631.

The spelling of 2048721 in words is "two million, forty-eight thousand, seven hundred twenty-one".