1084490987 has 8 divisors (see below), whose sum is σ = 1149234000. Its totient is φ = 1020514464.

The previous prime is 1084490983. The next prime is 1084490999. The reversal of 1084490987 is 7890944801.

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

It is a cyclic number.

It is not a de Polignac number, because 1084490987 - 2² = 1084490983 is a prime.

It is a super-2 number, since 2×1084490987² = 2352241401768468338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1084490983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188708 + ... + 194369.

It is an arithmetic number, because the mean of its divisors is an integer number (143654250).

Almost surely, 2^1084490987 is an apocalyptic number.

1084490987 is a deficient number, since it is larger than the sum of its proper divisors (64743013).

1084490987 is a wasteful number, since it uses less digits than its factorization.

1084490987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383245.

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 1084490987 is about 32931.6107562324. The cubic root of 1084490987 is about 1027.4057272076.

The spelling of 1084490987 in words is "one billion, eighty-four million, four hundred ninety thousand, nine hundred eighty-seven".