667340748 has 24 divisors (see below), whose sum is σ = 1730142960. Its totient is φ = 222446880.

The previous prime is 667340747. The next prime is 667340749. The reversal of 667340748 is 847043766.

It is an interprime number because it is at equal distance from previous prime (667340747) and next prime (667340749).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (667340741) 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, 3089433 + ... + 3089648.

It is an arithmetic number, because the mean of its divisors is an integer number (72089290).

Almost surely, 2^667340748 is an apocalyptic number.

It is an amenable number.

667340748 is an abundant number, since it is smaller than the sum of its proper divisors (1062802212).

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

667340748 is a wasteful number, since it uses less digits than its factorization.

667340748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6179094 (or 6179086 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The square root of 667340748 is about 25832.9392055956. The cubic root of 667340748 is about 873.8747976986.

The spelling of 667340748 in words is "six hundred sixty-seven million, three hundred forty thousand, seven hundred forty-eight".