667315 has 12 divisors (see below), whose sum is σ = 880992. Its totient is φ = 484880.

The previous prime is 667309. The next prime is 667321. The reversal of 667315 is 513766.

667315 = 82² + 83² + ... + 136².

It is an interprime number because it is at equal distance from previous prime (667309) and next prime (667321).

It is not a de Polignac number, because 667315 - 2⁵ = 667283 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54 + ... + 1156.

It is an arithmetic number, because the mean of its divisors is an integer number (73416).

2⁶⁶⁷³¹⁵ is an apocalyptic number.

667315 is a deficient number, since it is larger than the sum of its proper divisors (213677).

667315 is a wasteful number, since it uses less digits than its factorization.

667315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130 (or 1119 counting only the distinct ones).

The product of its digits is 3780, while the sum is 28.

The square root of 667315 is about 816.8935059113. The cubic root of 667315 is about 87.3863558654.

It can be divided in two parts, 66 and 7315, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 667315 in words is "six hundred sixty-seven thousand, three hundred fifteen".