1986482605 has 8 divisors (see below), whose sum is σ = 2384034912. Its totient is φ = 1589015568.

The previous prime is 1986482579. The next prime is 1986482621. The reversal of 1986482605 is 5062846891.

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 1986482605 - 2¹⁷ = 1986351533 is a prime.

It is a super-2 number, since 2×1986482605² = 7892226279935172050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54382 + ... + 83248.

It is an arithmetic number, because the mean of its divisors is an integer number (298004364).

Almost surely, 2^1986482605 is an apocalyptic number.

It is an amenable number.

1986482605 is a deficient number, since it is larger than the sum of its proper divisors (397552307).

1986482605 is a wasteful number, since it uses less digits than its factorization.

1986482605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42635.

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 1986482605 is about 44569.9742539751. The cubic root of 1986482605 is about 1257.0761558932.

The spelling of 1986482605 in words is "one billion, nine hundred eighty-six million, four hundred eighty-two thousand, six hundred five".