6991460 has 24 divisors (see below), whose sum is σ = 16779840. Its totient is φ = 2397024.

The previous prime is 6991459. The next prime is 6991463. The reversal of 6991460 is 641996.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 6991460.

It is not an unprimeable number, because it can be changed into a prime (6991463) 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, 24830 + ... + 25109.

It is an arithmetic number, because the mean of its divisors is an integer number (699160).

Almost surely, 2^6991460 is an apocalyptic number.

It is an amenable number.

6991460 is an abundant number, since it is smaller than the sum of its proper divisors (9788380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6991460 is a wasteful number, since it uses less digits than its factorization.

6991460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49955 (or 49953 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 6991460 is about 2644.1369102223. The cubic root of 6991460 is about 191.2152940854.

Subtracting from 6991460 its product of nonzero digits (11664), we obtain a palindrome (6979796).

The spelling of 6991460 in words is "six million, nine hundred ninety-one thousand, four hundred sixty".