2771421 has 8 divisors (see below), whose sum is σ = 3731520. Its totient is φ = 1829472.

The previous prime is 2771401. The next prime is 2771437. The reversal of 2771421 is 1241772.

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

It is not a de Polignac number, because 2771421 - 2⁵ = 2771389 is a prime.

2771421 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2771391 and 2771400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2771401) 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, 4176 + ... + 4793.

It is an arithmetic number, because the mean of its divisors is an integer number (466440).

2^2771421 is an apocalyptic number.

It is an amenable number.

2771421 is a deficient number, since it is larger than the sum of its proper divisors (960099).

2771421 is a wasteful number, since it uses less digits than its factorization.

2771421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9075.

The product of its digits is 784, while the sum is 24.

The square root of 2771421 is about 1664.7585410503. The cubic root of 2771421 is about 140.4647987023.

The spelling of 2771421 in words is "two million, seven hundred seventy-one thousand, four hundred twenty-one".