667043433 has 48 divisors (see below), whose sum is σ = 1173384576. Its totient is φ = 356451840.

The previous prime is 667043389. The next prime is 667043453. The reversal of 667043433 is 334340766.

It is not a de Polignac number, because 667043433 - 2¹⁷ = 666912361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (667043453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 172663 + ... + 176483.

It is an arithmetic number, because the mean of its divisors is an integer number (24445512).

Almost surely, 2^667043433 is an apocalyptic number.

667043433 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

667043433 is a deficient number, since it is larger than the sum of its proper divisors (506341143).

667043433 is a wasteful number, since it uses less digits than its factorization.

667043433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4014 (or 4011 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 36.

The square root of 667043433 is about 25827.1839928398. The cubic root of 667043433 is about 873.7450015985.

The spelling of 667043433 in words is "six hundred sixty-seven million, forty-three thousand, four hundred thirty-three".