667341423 has 48 divisors (see below), whose sum is σ = 1146629120. Its totient is φ = 379943136.

The previous prime is 667341419. The next prime is 667341431. The reversal of 667341423 is 324143766.

It is a happy number.

It is not a de Polignac number, because 667341423 - 2² = 667341419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667343423) 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, 623733 + ... + 624801.

Almost surely, 2^667341423 is an apocalyptic number.

667341423 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

667341423 is a deficient number, since it is larger than the sum of its proper divisors (479287697).

667341423 is a wasteful number, since it uses less digits than its factorization.

667341423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458 (or 1446 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 667341423 is about 25832.9522703078. The cubic root of 667341423 is about 873.8750923334.

The spelling of 667341423 in words is "six hundred sixty-seven million, three hundred forty-one thousand, four hundred twenty-three".