2979421 has 2 divisors, whose sum is σ = 2979422. Its totient is φ = 2979420.

The previous prime is 2979419. The next prime is 2979439. The reversal of 2979421 is 1249792.

It is a happy number.

2979421 is nontrivially palindromic in base 6.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1512900 + 1466521 = 1230^2 + 1211^2 .

It is a cyclic number.

It is not a de Polignac number, because 2979421 - 2¹ = 2979419 is a prime.

Together with 2979419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2979491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1489710 + 1489711.

It is an arithmetic number, because the mean of its divisors is an integer number (1489711).

2^2979421 is an apocalyptic number.

It is an amenable number.

2979421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2979421 is an equidigital number, since it uses as much as digits as its factorization.

2979421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 34.

The square root of 2979421 is about 1726.0999391692. The cubic root of 2979421 is about 143.8944217106.

The spelling of 2979421 in words is "two million, nine hundred seventy-nine thousand, four hundred twenty-one".