723872427 has 16 divisors (see below), whose sum is σ = 1043684352. Its totient is φ = 444529280.

The previous prime is 723872423. The next prime is 723872437. The reversal of 723872427 is 724278327.

It is a cyclic number.

It is not a de Polignac number, because 723872427 - 2² = 723872423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (723872423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148599 + ... + 153392.

It is an arithmetic number, because the mean of its divisors is an integer number (65230272).

Almost surely, 2^723872427 is an apocalyptic number.

723872427 is a deficient number, since it is larger than the sum of its proper divisors (319811925).

723872427 is a wasteful number, since it uses less digits than its factorization.

723872427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302058.

The product of its digits is 263424, while the sum is 42.

The square root of 723872427 is about 26904.8773831066. The cubic root of 723872427 is about 897.8849209265.

The spelling of 723872427 in words is "seven hundred twenty-three million, eight hundred seventy-two thousand, four hundred twenty-seven".