667705283 has 8 divisors (see below), whose sum is σ = 763940352. Its totient is φ = 571682376.

The previous prime is 667705273. The next prime is 667705303. The reversal of 667705283 is 382507766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 667705283 - 2¹² = 667701187 is a prime.

It is a super-2 number, since 2×667705283² = 891660689892220178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (667705253) 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, 46235 + ... + 58932.

It is an arithmetic number, because the mean of its divisors is an integer number (95492544).

Almost surely, 2^667705283 is an apocalyptic number.

667705283 is a deficient number, since it is larger than the sum of its proper divisors (96235069).

667705283 is a wasteful number, since it uses less digits than its factorization.

667705283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106081.

The product of its (nonzero) digits is 423360, while the sum is 44.

The square root of 667705283 is about 25839.9938660983. The cubic root of 667705283 is about 874.0338868215.

The spelling of 667705283 in words is "six hundred sixty-seven million, seven hundred five thousand, two hundred eighty-three".