6697490 has 16 divisors (see below), whose sum is σ = 12764952. Its totient is φ = 2521344.

The previous prime is 6697489. The next prime is 6697499. The reversal of 6697490 is 947966.

It can be written as a sum of positive squares in 4 ways, for example, as 6436369 + 261121 = 2537^2 + 511^2 .

It is not an unprimeable number, because it can be changed into a prime (6697499) 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, 19529 + ... + 19868.

Almost surely, 2^6697490 is an apocalyptic number.

6697490 is a deficient number, since it is larger than the sum of its proper divisors (6067462).

6697490 is a wasteful number, since it uses less digits than its factorization.

6697490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39421.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 6697490 is about 2587.9509268918. The cubic root of 6697490 is about 188.4968185641.

The spelling of 6697490 in words is "six million, six hundred ninety-seven thousand, four hundred ninety".