723098 has 4 divisors (see below), whose sum is σ = 1084650. Its totient is φ = 361548.

The previous prime is 723089. The next prime is 723101. The reversal of 723098 is 890327.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 890327 = 113 ⋅7879.

It can be written as a sum of positive squares in only one way, i.e., 628849 + 94249 = 793^2 + 307^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 723098.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 723098.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180773 + ... + 180776.

2⁷²³⁰⁹⁸ is an apocalyptic number.

723098 is a deficient number, since it is larger than the sum of its proper divisors (361552).

723098 is a wasteful number, since it uses less digits than its factorization.

723098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361551.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 723098 is about 850.3516919487. The cubic root of 723098 is about 89.7564609217.

The spelling of 723098 in words is "seven hundred twenty-three thousand, ninety-eight".