998051 has 4 divisors (see below), whose sum is σ = 1050600. Its totient is φ = 945504.

The previous prime is 998029. The next prime is 998069. The reversal of 998051 is 150899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150899 = 7 ⋅21557.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-998051 is a prime.

It is a super-2 number, since 2×998051² = 1992211597202, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 997999 and 998017.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 998051.

It is not an unprimeable number, because it can be changed into a prime (998071) 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, 26246 + ... + 26283.

It is an arithmetic number, because the mean of its divisors is an integer number (262650).

2⁹⁹⁸⁰⁵¹ is an apocalyptic number.

998051 is a deficient number, since it is larger than the sum of its proper divisors (52549).

998051 is a wasteful number, since it uses less digits than its factorization.

998051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52548.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 998051 is about 999.0250247116. The cubic root of 998051 is about 99.9349910809.

The spelling of 998051 in words is "nine hundred ninety-eight thousand, fifty-one".