284149898 has 4 divisors (see below), whose sum is σ = 426224850. Its totient is φ = 142074948.

The previous prime is 284149897. The next prime is 284149903. The reversal of 284149898 is 898941482.

It is a happy number.

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., 164531929 + 119617969 = 12827^2 + 10937^2 .

It is not an unprimeable number, because it can be changed into a prime (284149897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71037473 + ... + 71037476.

Almost surely, 2^284149898 is an apocalyptic number.

284149898 is a deficient number, since it is larger than the sum of its proper divisors (142074952).

284149898 is a wasteful number, since it uses less digits than its factorization.

284149898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142074951.

The product of its digits is 1327104, while the sum is 53.

The square root of 284149898 is about 16856.7463645865. The cubic root of 284149898 is about 657.4294703799.

The spelling of 284149898 in words is "two hundred eighty-four million, one hundred forty-nine thousand, eight hundred ninety-eight".