2538493 has 2 divisors, whose sum is σ = 2538494. Its totient is φ = 2538492.

The previous prime is 2538479. The next prime is 2538499. The reversal of 2538493 is 3948352.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2424249 + 114244 = 1557^2 + 338^2 .

It is a cyclic number.

It is not a de Polignac number, because 2538493 - 2¹³ = 2530301 is a prime.

It is a super-2 number, since 2×2538493² = 12887893422098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2538499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1269246 + 1269247.

It is an arithmetic number, because the mean of its divisors is an integer number (1269247).

2^2538493 is an apocalyptic number.

It is an amenable number.

2538493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2538493 is an equidigital number, since it uses as much as digits as its factorization.

2538493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 34.

The square root of 2538493 is about 1593.2648869538. The cubic root of 2538493 is about 136.4139098539.

The spelling of 2538493 in words is "two million, five hundred thirty-eight thousand, four hundred ninety-three".