6787493 has 2 divisors, whose sum is σ = 6787494. Its totient is φ = 6787492.

The previous prime is 6787489. The next prime is 6787499. The reversal of 6787493 is 3947876.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5026564 + 1760929 = 2242^2 + 1327^2 .

It is a cyclic number.

It is not a de Polignac number, because 6787493 - 2² = 6787489 is a prime.

It is a super-2 number, since 2×6787493² = 92140122450098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6787499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3393746 + 3393747.

It is an arithmetic number, because the mean of its divisors is an integer number (3393747).

Almost surely, 2^6787493 is an apocalyptic number.

It is an amenable number.

6787493 is a deficient number, since it is larger than the sum of its proper divisors (1).

6787493 is an equidigital number, since it uses as much as digits as its factorization.

6787493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 44.

The square root of 6787493 is about 2605.2817505982. The cubic root of 6787493 is about 189.3374243506.

The spelling of 6787493 in words is "six million, seven hundred eighty-seven thousand, four hundred ninety-three".