2074921 has 4 divisors (see below), whose sum is σ = 2146500. Its totient is φ = 2003344.

The previous prime is 2074913. The next prime is 2074931. The reversal of 2074921 is 1294702.

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 608400 + 1466521 = 780^2 + 1211^2 .

It is a cyclic number.

It is not a de Polignac number, because 2074921 - 2³ = 2074913 is a prime.

It is a Duffinian number.

2074921 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2074931) 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, 35746 + ... + 35803.

It is an arithmetic number, because the mean of its divisors is an integer number (536625).

2^2074921 is an apocalyptic number.

It is an amenable number.

2074921 is a deficient number, since it is larger than the sum of its proper divisors (71579).

2074921 is an equidigital number, since it uses as much as digits as its factorization.

2074921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71578.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 2074921 is about 1440.4586075275. The cubic root of 2074921 is about 127.5461014883.

The spelling of 2074921 in words is "two million, seventy-four thousand, nine hundred twenty-one".