1986087054 has 16 divisors (see below), whose sum is σ = 4539627648. Its totient is φ = 567453432.

The previous prime is 1986087041. The next prime is 1986087083. The reversal of 1986087054 is 4507806891.

It is a junction number, because it is equal to n+sod(n) for n = 1986086994 and 1986087012.

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, 23643852 + ... + 23643935.

It is an arithmetic number, because the mean of its divisors is an integer number (283726728).

Almost surely, 2^1986087054 is an apocalyptic number.

1986087054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1986087054 is an abundant number, since it is smaller than the sum of its proper divisors (2553540594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1986087054 is a wasteful number, since it uses less digits than its factorization.

1986087054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47287799.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 1986087054 is about 44565.5366174357. The cubic root of 1986087054 is about 1256.9927134749.

The spelling of 1986087054 in words is "one billion, nine hundred eighty-six million, eighty-seven thousand, fifty-four".