2921313 has 8 divisors (see below), whose sum is σ = 3915648. Its totient is φ = 1937264.

The previous prime is 2921293. The next prime is 2921327. The reversal of 2921313 is 3131292.

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 2921313 - 2⁶ = 2921249 is a prime.

It is an Ulam number.

2921313 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2921313.

It is not an unprimeable number, because it can be changed into a prime (2921213) 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, 1881 + ... + 3062.

It is an arithmetic number, because the mean of its divisors is an integer number (489456).

2^2921313 is an apocalyptic number.

It is an amenable number.

2921313 is a deficient number, since it is larger than the sum of its proper divisors (994335).

2921313 is a wasteful number, since it uses less digits than its factorization.

2921313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5143.

The product of its digits is 324, while the sum is 21.

The square root of 2921313 is about 1709.1848934507. The cubic root of 2921313 is about 142.9528101582.

Subtracting from 2921313 its sum of digits (21), we obtain a palindrome (2921292).

The spelling of 2921313 in words is "two million, nine hundred twenty-one thousand, three hundred thirteen".