740651 has 2 divisors, whose sum is σ = 740652. Its totient is φ = 740650.

The previous prime is 740603. The next prime is 740653. The reversal of 740651 is 156047.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 740651 - 2¹⁴ = 724267 is a prime.

Together with 740653, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (740653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370325 + 370326.

It is an arithmetic number, because the mean of its divisors is an integer number (370326).

2⁷⁴⁰⁶⁵¹ is an apocalyptic number.

740651 is a deficient number, since it is larger than the sum of its proper divisors (1).

740651 is an equidigital number, since it uses as much as digits as its factorization.

740651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 740651 is about 860.6108295856. The cubic root of 740651 is about 90.4769331645.

Adding to 740651 its reverse (156047), we get a palindrome (896698).

The spelling of 740651 in words is "seven hundred forty thousand, six hundred fifty-one".