740865 has 8 divisors (see below), whose sum is σ = 1185408. Its totient is φ = 395120.

The previous prime is 740849. The next prime is 740891. The reversal of 740865 is 568047.

It is a happy number.

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

It is not a de Polignac number, because 740865 - 2⁴ = 740849 is a prime.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 740865.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24681 + ... + 24710.

It is an arithmetic number, because the mean of its divisors is an integer number (148176).

2⁷⁴⁰⁸⁶⁵ is an apocalyptic number.

It is an amenable number.

740865 is a deficient number, since it is larger than the sum of its proper divisors (444543).

740865 is a wasteful number, since it uses less digits than its factorization.

740865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49399.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 740865 is about 860.7351509030. The cubic root of 740865 is about 90.4856463098.

The spelling of 740865 in words is "seven hundred forty thousand, eight hundred sixty-five".