740666717 has 8 divisors (see below), whose sum is σ = 854695296. Its totient is φ = 628692912.

The previous prime is 740666713. The next prime is 740666741. The reversal of 740666717 is 717666047.

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

It is a cyclic number.

It is not a de Polignac number, because 740666717 - 2² = 740666713 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740666711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512918 + ... + 514359.

It is an arithmetic number, because the mean of its divisors is an integer number (106836912).

Almost surely, 2^740666717 is an apocalyptic number.

It is an amenable number.

740666717 is a deficient number, since it is larger than the sum of its proper divisors (114028579).

740666717 is a wasteful number, since it uses less digits than its factorization.

740666717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027387.

The product of its (nonzero) digits is 296352, while the sum is 44.

The square root of 740666717 is about 27215.1927606622. The cubic root of 740666717 is about 904.7757314924.

The spelling of 740666717 in words is "seven hundred forty million, six hundred sixty-six thousand, seven hundred seventeen".