740667 has 4 divisors (see below), whose sum is σ = 987560. Its totient is φ = 493776.

The previous prime is 740659. The next prime is 740671. The reversal of 740667 is 766047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 766047 = 3 ⋅255349.

It is not a de Polignac number, because 740667 - 2³ = 740659 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740687) 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, 123442 + ... + 123447.

It is an arithmetic number, because the mean of its divisors is an integer number (246890).

2⁷⁴⁰⁶⁶⁷ is an apocalyptic number.

740667 is a deficient number, since it is larger than the sum of its proper divisors (246893).

740667 is a wasteful number, since it uses less digits than its factorization.

740667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246892.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 740667 is about 860.6201252585. The cubic root of 740667 is about 90.4775846727.

The spelling of 740667 in words is "seven hundred forty thousand, six hundred sixty-seven".