743667 has 4 divisors (see below), whose sum is σ = 991560. Its totient is φ = 495776.

The previous prime is 743657. The next prime is 743669. The reversal of 743667 is 766347.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-743667 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (743669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123942 + ... + 123947.

It is an arithmetic number, because the mean of its divisors is an integer number (247890).

2⁷⁴³⁶⁶⁷ is an apocalyptic number.

743667 is a deficient number, since it is larger than the sum of its proper divisors (247893).

743667 is a wasteful number, since it uses less digits than its factorization.

743667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247892.

The product of its digits is 21168, while the sum is 33.

The square root of 743667 is about 862.3612931944. The cubic root of 743667 is about 90.5995770146.

It can be divided in two parts, 7436 and 67, that added together give a triangular number (7503 = T₁₂₂).

The spelling of 743667 in words is "seven hundred forty-three thousand, six hundred sixty-seven".