723848731 has 2 divisors, whose sum is σ = 723848732. Its totient is φ = 723848730.

The previous prime is 723848717. The next prime is 723848743. The reversal of 723848731 is 137848327.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-723848731 is a prime.

It is a super-2 number, since 2×723848731² = 1047913970740620722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (723848701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361924365 + 361924366.

It is an arithmetic number, because the mean of its divisors is an integer number (361924366).

Almost surely, 2^723848731 is an apocalyptic number.

723848731 is a deficient number, since it is larger than the sum of its proper divisors (1).

723848731 is an equidigital number, since it uses as much as digits as its factorization.

723848731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225792, while the sum is 43.

The square root of 723848731 is about 26904.4370132512. The cubic root of 723848731 is about 897.8751233837.

The spelling of 723848731 in words is "seven hundred twenty-three million, eight hundred forty-eight thousand, seven hundred thirty-one".