2814721 has 8 divisors (see below), whose sum is σ = 3464384. Its totient is φ = 2226960.

The previous prime is 2814719. The next prime is 2814727. The reversal of 2814721 is 1274182.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2814721 - 2¹ = 2814719 is a prime.

2814721 is a lucky number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (2814727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15375 + ... + 15556.

It is an arithmetic number, because the mean of its divisors is an integer number (433048).

2^2814721 is an apocalyptic number.

It is an amenable number.

2814721 is a deficient number, since it is larger than the sum of its proper divisors (649663).

2814721 is a wasteful number, since it uses less digits than its factorization.

2814721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30951.

The product of its digits is 896, while the sum is 25.

The square root of 2814721 is about 1677.7130267123. The cubic root of 2814721 is about 141.1925508406.

The spelling of 2814721 in words is "two million, eight hundred fourteen thousand, seven hundred twenty-one".