999284253 has 8 divisors (see below), whose sum is σ = 1453504416. Its totient is φ = 605626800.

The previous prime is 999284219. The next prime is 999284263. The reversal of 999284253 is 352482999.

It is a happy number.

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

It is not a de Polignac number, because 999284253 - 2⁶ = 999284189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 999284196 and 999284205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999284263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15140638 + ... + 15140703.

It is an arithmetic number, because the mean of its divisors is an integer number (181688052).

Almost surely, 2^999284253 is an apocalyptic number.

It is an amenable number.

999284253 is a deficient number, since it is larger than the sum of its proper divisors (454220163).

999284253 is a wasteful number, since it uses less digits than its factorization.

999284253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30281355.

The product of its digits is 1399680, while the sum is 51.

The square root of 999284253 is about 31611.4576221977. The cubic root of 999284253 is about 999.7613607225.

The spelling of 999284253 in words is "nine hundred ninety-nine million, two hundred eighty-four thousand, two hundred fifty-three".