723945984 has 80 divisors (see below), whose sum is σ = 1934272032. Its totient is φ = 240611328.

The previous prime is 723945977. The next prime is 723945991. The reversal of 723945984 is 489549327.

It is an interprime number because it is at equal distance from previous prime (723945977) and next prime (723945991).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 987282 + ... + 988014.

Almost surely, 2^723945984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 723945984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (967136016).

723945984 is an abundant number, since it is smaller than the sum of its proper divisors (1210326048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

723945984 is an equidigital number, since it uses as much as digits as its factorization.

723945984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397 (or 1381 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 51.

The square root of 723945984 is about 26906.2443310099. The cubic root of 723945984 is about 897.9153330459.

The spelling of 723945984 in words is "seven hundred twenty-three million, nine hundred forty-five thousand, nine hundred eighty-four".