667713370 has 16 divisors (see below), whose sum is σ = 1202237640. Its totient is φ = 267006784.

The previous prime is 667713367. The next prime is 667713373. The reversal of 667713370 is 73317766.

It is an interprime number because it is at equal distance from previous prime (667713367) and next prime (667713373).

It can be written as a sum of positive squares in 4 ways, for example, as 541353289 + 126360081 = 23267^2 + 11241^2 .

It is a super-2 number, since 2×667713370² = 891682288953513800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (667713373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36096 + ... + 51364.

Almost surely, 2^667713370 is an apocalyptic number.

667713370 is a deficient number, since it is larger than the sum of its proper divisors (534524270).

667713370 is a wasteful number, since it uses less digits than its factorization.

667713370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19649.

The product of its (nonzero) digits is 111132, while the sum is 40.

The square root of 667713370 is about 25840.1503478598. The cubic root of 667713370 is about 874.0374154659.

The spelling of 667713370 in words is "six hundred sixty-seven million, seven hundred thirteen thousand, three hundred seventy".