284021845969 has 9 divisors (see below), whose sum is σ = 284845481193. Its totient is φ = 283200590052.

The previous prime is 284021845967. The next prime is 284021845973. The reversal of 284021845969 is 969548120482.

It is a happy number.

The square root of 284021845969 is 532937.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 284021845969 - 2¹ = 284021845967 is a prime.

It is a super-2 number, since 2×284021845969² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (284021845963) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 278725542 + ... + 278726560.

Almost surely, 2^284021845969 is an apocalyptic number.

284021845969 is the 532937-th square number.

284021845969 is the 266469-th centered octagonal number.

It is an amenable number.

284021845969 is a deficient number, since it is larger than the sum of its proper divisors (823635224).

284021845969 is an frugal number, since it uses more digits than its factorization.

284021845969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3084 (or 1542 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 58.

The spelling of 284021845969 in words is "two hundred eighty-four billion, twenty-one million, eight hundred forty-five thousand, nine hundred sixty-nine".