2951421 has 16 divisors (see below), whose sum is σ = 4546368. Its totient is φ = 1683200.

The previous prime is 2951413. The next prime is 2951423. The reversal of 2951421 is 1241592.

It is a cyclic number.

It is not a de Polignac number, because 2951421 - 2³ = 2951413 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2951391 and 2951400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2951423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2070 + ... + 3191.

It is an arithmetic number, because the mean of its divisors is an integer number (284148).

2^2951421 is an apocalyptic number.

It is an amenable number.

2951421 is a deficient number, since it is larger than the sum of its proper divisors (1594947).

2951421 is a wasteful number, since it uses less digits than its factorization.

2951421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5292.

The product of its digits is 720, while the sum is 24.

The square root of 2951421 is about 1717.9700230214. The cubic root of 2951421 is about 143.4422386073.

The spelling of 2951421 in words is "two million, nine hundred fifty-one thousand, four hundred twenty-one".