740687 has 2 divisors, whose sum is σ = 740688. Its totient is φ = 740686.

The previous prime is 740681. The next prime is 740693. The reversal of 740687 is 786047.

It is a balanced prime because it is at equal distance from previous prime (740681) and next prime (740693).

It is an emirp because it is prime and its reverse (786047) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 740687 - 2⁴ = 740671 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (740681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370343 + 370344.

It is an arithmetic number, because the mean of its divisors is an integer number (370344).

2⁷⁴⁰⁶⁸⁷ is an apocalyptic number.

740687 is a deficient number, since it is larger than the sum of its proper divisors (1).

740687 is an equidigital number, since it uses as much as digits as its factorization.

740687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 740687 is about 860.6317447085. The cubic root of 740687 is about 90.4783990447.

The spelling of 740687 in words is "seven hundred forty thousand, six hundred eighty-seven".