984867890 has 8 divisors (see below), whose sum is σ = 1772762220. Its totient is φ = 393947152.

The previous prime is 984867883. The next prime is 984867899. The reversal of 984867890 is 98768489.

It can be written as a sum of positive squares in 2 ways, for example, as 980503969 + 4363921 = 31313^2 + 2089^2 .

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

It is not an unprimeable number, because it can be changed into a prime (984867899) 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, 49243385 + ... + 49243404.

Almost surely, 2^984867890 is an apocalyptic number.

984867890 is a deficient number, since it is larger than the sum of its proper divisors (787894330).

984867890 is a wasteful number, since it uses less digits than its factorization.

984867890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98486796.

The product of its (nonzero) digits is 6967296, while the sum is 59.

The square root of 984867890 is about 31382.6048950689. The cubic root of 984867890 is about 994.9303049590.

The spelling of 984867890 in words is "nine hundred eighty-four million, eight hundred sixty-seven thousand, eight hundred ninety".