6991467 has 24 divisors (see below), whose sum is σ = 10944000. Its totient is φ = 3958416.

The previous prime is 6991463. The next prime is 6991493. The reversal of 6991467 is 7641996.

It is not a de Polignac number, because 6991467 - 2² = 6991463 is a prime.

It is a super-3 number, since 3×6991467³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 23 ways as a sum of consecutive naturals, for example, 29134 + ... + 29372.

It is an arithmetic number, because the mean of its divisors is an integer number (456000).

Almost surely, 2^6991467 is an apocalyptic number.

6991467 is a deficient number, since it is larger than the sum of its proper divisors (3952533).

6991467 is a wasteful number, since it uses less digits than its factorization.

6991467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 448 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 6991467 is about 2644.1382339053. The cubic root of 6991467 is about 191.2153579016.

It can be divided in two parts, 699146 and 7, that added together give a triangular number (699153 = T₁₁₈₂).

The spelling of 6991467 in words is "six million, nine hundred ninety-one thousand, four hundred sixty-seven".