740740723 has 2 divisors, whose sum is σ = 740740724. Its totient is φ = 740740722.

The previous prime is 740740717. The next prime is 740740729. The reversal of 740740723 is 327047047.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (740740717) and next prime (740740729).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-740740723 is a prime.

It is not a weakly prime, because it can be changed into another prime (740740729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370370361 + 370370362.

It is an arithmetic number, because the mean of its divisors is an integer number (370370362).

Almost surely, 2^740740723 is an apocalyptic number.

740740723 is a deficient number, since it is larger than the sum of its proper divisors (1).

740740723 is an equidigital number, since it uses as much as digits as its factorization.

740740723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32928, while the sum is 34.

The square root of 740740723 is about 27216.5523716726. The cubic root of 740740723 is about 904.8058649749.

The spelling of 740740723 in words is "seven hundred forty million, seven hundred forty thousand, seven hundred twenty-three".