1986813962 has 16 divisors (see below), whose sum is σ = 3427664640. Its totient is φ = 846067248.

The previous prime is 1986813943. The next prime is 1986814019. The reversal of 1986813962 is 2693186891.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449762 + ... + 454157.

It is an arithmetic number, because the mean of its divisors is an integer number (214229040).

Almost surely, 2^1986813962 is an apocalyptic number.

1986813962 is a deficient number, since it is larger than the sum of its proper divisors (1440850678).

1986813962 is a wasteful number, since it uses less digits than its factorization.

1986813962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904085.

The product of its digits is 1119744, while the sum is 53.

The square root of 1986813962 is about 44573.6913660962. The cubic root of 1986813962 is about 1257.1460479098.

The spelling of 1986813962 in words is "one billion, nine hundred eighty-six million, eight hundred thirteen thousand, nine hundred sixty-two".