284861546 has 4 divisors (see below), whose sum is σ = 427292322. Its totient is φ = 142430772.

The previous prime is 284861543. The next prime is 284861569. The reversal of 284861546 is 645168482.

It is a happy number.

284861546 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 176597521 + 108264025 = 13289^2 + 10405^2 .

It is a super-2 number, since 2×284861546² = 162292200779020232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 284861497 and 284861506.

It is not an unprimeable number, because it can be changed into a prime (284861543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71215385 + ... + 71215388.

Almost surely, 2^284861546 is an apocalyptic number.

284861546 is a deficient number, since it is larger than the sum of its proper divisors (142430776).

284861546 is a wasteful number, since it uses less digits than its factorization.

284861546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142430775.

The product of its digits is 368640, while the sum is 44.

The square root of 284861546 is about 16877.8418644091. The cubic root of 284861546 is about 657.9778526866.

The spelling of 284861546 in words is "two hundred eighty-four million, eight hundred sixty-one thousand, five hundred forty-six".