898380729 has 27 divisors (see below), whose sum is σ = 1324030383. Its totient is φ = 586991232.

The previous prime is 898380727. The next prime is 898380731. The reversal of 898380729 is 927083898.

The square root of 898380729 is 29973.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (898380727) and next prime (898380731).

It can be written as a sum of positive squares in only one way, i.e., 403407225 + 494973504 = 20085^2 + 22248^2 .

It is not a de Polignac number, because 898380729 - 2¹ = 898380727 is a prime.

It is not an unprimeable number, because it can be changed into a prime (898380727) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 8722092 + ... + 8722194.

Almost surely, 2^898380729 is an apocalyptic number.

898380729 is the 29973-rd square number.

898380729 is the 14987-th centered octagonal number.

It is an amenable number.

898380729 is a deficient number, since it is larger than the sum of its proper divisors (425649654).

898380729 is an equidigital number, since it uses as much as digits as its factorization.

898380729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The cubic root of 898380729 is about 964.9100040460.

The spelling of 898380729 in words is "eight hundred ninety-eight million, three hundred eighty thousand, seven hundred twenty-nine".