2930393 has 4 divisors (see below), whose sum is σ = 3001908. Its totient is φ = 2858880.

The previous prime is 2930381. The next prime is 2930401. The reversal of 2930393 is 3930392.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1261129 + 1669264 = 1123^2 + 1292^2 .

It is a cyclic number.

It is not a de Polignac number, because 2930393 - 2⁶ = 2930329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2930303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35696 + ... + 35777.

It is an arithmetic number, because the mean of its divisors is an integer number (750477).

2^2930393 is an apocalyptic number.

It is an amenable number.

2930393 is a deficient number, since it is larger than the sum of its proper divisors (71515).

2930393 is an equidigital number, since it uses as much as digits as its factorization.

2930393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71514.

The product of its (nonzero) digits is 4374, while the sum is 29.

The square root of 2930393 is about 1711.8390695390. The cubic root of 2930393 is about 143.1007652057.

Subtracting 2930393 from its reverse (3930392), we obtain a palindrome (999999).

The spelling of 2930393 in words is "two million, nine hundred thirty thousand, three hundred ninety-three".