6691480 has 32 divisors (see below), whose sum is σ = 15182640. Its totient is φ = 2654080.

The previous prime is 6691471. The next prime is 6691481. The reversal of 6691480 is 841966.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6691481) 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, 4602 + ... + 5878.

Almost surely, 2^6691480 is an apocalyptic number.

It is an amenable number.

6691480 is an abundant number, since it is smaller than the sum of its proper divisors (8491160).

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

6691480 is a wasteful number, since it uses less digits than its factorization.

6691480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419 (or 1415 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 6691480 is about 2586.7895159831. The cubic root of 6691480 is about 188.4404190817.

The spelling of 6691480 in words is "six million, six hundred ninety-one thousand, four hundred eighty".