2931493 has 2 divisors, whose sum is σ = 2931494. Its totient is φ = 2931492.

The previous prime is 2931457. The next prime is 2931503. The reversal of 2931493 is 3941392.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1803649 + 1127844 = 1343^2 + 1062^2 .

It is a cyclic number.

It is not a de Polignac number, because 2931493 - 2²¹ = 834341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2931413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1465746 + 1465747.

It is an arithmetic number, because the mean of its divisors is an integer number (1465747).

2^2931493 is an apocalyptic number.

It is an amenable number.

2931493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2931493 is an equidigital number, since it uses as much as digits as its factorization.

2931493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 31.

The square root of 2931493 is about 1712.1603312774. The cubic root of 2931493 is about 143.1186685096.

The spelling of 2931493 in words is "two million, nine hundred thirty-one thousand, four hundred ninety-three".