980399 has 4 divisors (see below), whose sum is σ = 1120464. Its totient is φ = 840336.

The previous prime is 980393. The next prime is 980401. The reversal of 980399 is 993089.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 993089 = 17 ⋅58417.

It is not a de Polignac number, because 980399 - 2¹² = 976303 is a prime.

It is a super-2 number, since 2×980399² = 1922364398402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980393) 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, 70022 + ... + 70035.

It is an arithmetic number, because the mean of its divisors is an integer number (280116).

2⁹⁸⁰³⁹⁹ is an apocalyptic number.

980399 is a deficient number, since it is larger than the sum of its proper divisors (140065).

980399 is a wasteful number, since it uses less digits than its factorization.

980399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140064.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 980399 is about 990.1509985856. The cubic root of 980399 is about 99.3423173513.

It can be divided in two parts, 9 and 80399, that added together give a palindrome (80408).

The spelling of 980399 in words is "nine hundred eighty thousand, three hundred ninety-nine".