898723 has 4 divisors (see below), whose sum is σ = 1027120. Its totient is φ = 770328.

The previous prime is 898717. The next prime is 898727. The reversal of 898723 is 327898.

898723 = T₂₈₂ + T₂₈₃ + ... + T₃₀₂.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 898723 - 2⁵ = 898691 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (898727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64188 + ... + 64201.

It is an arithmetic number, because the mean of its divisors is an integer number (256780).

2⁸⁹⁸⁷²³ is an apocalyptic number.

898723 is a deficient number, since it is larger than the sum of its proper divisors (128397).

898723 is a wasteful number, since it uses less digits than its factorization.

898723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128396.

The product of its digits is 24192, while the sum is 37.

The square root of 898723 is about 948.0100210441. The cubic root of 898723 is about 96.5032527741.

The spelling of 898723 in words is "eight hundred ninety-eight thousand, seven hundred twenty-three".