6887497 has 4 divisors (see below), whose sum is σ = 6984576. Its totient is φ = 6790420.

The previous prime is 6887479. The next prime is 6887501. The reversal of 6887497 is 7947886.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7947886 = 2 ⋅3973943.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6887497 is a prime.

It is a super-2 number, since 2×6887497² = 94875229850018, which contains 22 as substring.

It is a Duffinian number.

6887497 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6887497.

It is not an unprimeable number, because it can be changed into a prime (6887417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48433 + ... + 48574.

It is an arithmetic number, because the mean of its divisors is an integer number (1746144).

Almost surely, 2^6887497 is an apocalyptic number.

It is an amenable number.

6887497 is a deficient number, since it is larger than the sum of its proper divisors (97079).

6887497 is an equidigital number, since it uses as much as digits as its factorization.

6887497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97078.

The product of its digits is 677376, while the sum is 49.

The square root of 6887497 is about 2624.4041228439. The cubic root of 6887497 is about 190.2627666248.

The spelling of 6887497 in words is "six million, eight hundred eighty-seven thousand, four hundred ninety-seven".