998465 has 8 divisors (see below), whose sum is σ = 1290408. Its totient is φ = 737280.

The previous prime is 998443. The next prime is 998471. The reversal of 998465 is 564899.

998465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 69169 + 929296 = 263^2 + 964^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 998465 - 2¹² = 994369 is a prime.

It is a Duffinian number.

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, 7616 + ... + 7745.

It is an arithmetic number, because the mean of its divisors is an integer number (161301).

2⁹⁹⁸⁴⁶⁵ is an apocalyptic number.

It is an amenable number.

998465 is a deficient number, since it is larger than the sum of its proper divisors (291943).

998465 is a wasteful number, since it uses less digits than its factorization.

998465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15379.

The product of its digits is 77760, while the sum is 41.

The square root of 998465 is about 999.2322052456. The cubic root of 998465 is about 99.9488071307.

The spelling of 998465 in words is "nine hundred ninety-eight thousand, four hundred sixty-five".