723898347 has 16 divisors (see below), whose sum is σ = 1019228160. Its totient is φ = 455745312.

The previous prime is 723898333. The next prime is 723898381. The reversal of 723898347 is 743898327.

It is not a de Polignac number, because 723898347 - 2¹⁵ = 723865579 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 723898347.

It is not an unprimeable number, because it can be changed into a prime (723898387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1963 + ... + 38100.

It is an arithmetic number, because the mean of its divisors is an integer number (63701760).

Almost surely, 2^723898347 is an apocalyptic number.

723898347 is a deficient number, since it is larger than the sum of its proper divisors (295329813).

723898347 is a wasteful number, since it uses less digits than its factorization.

723898347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40402.

The product of its digits is 2032128, while the sum is 51.

The square root of 723898347 is about 26905.3590758421. The cubic root of 723898347 is about 897.8956377777.

The spelling of 723898347 in words is "seven hundred twenty-three million, eight hundred ninety-eight thousand, three hundred forty-seven".