1336386987 has 24 divisors (see below), whose sum is σ = 2083536000. Its totient is φ = 820528128.

The previous prime is 1336386941. The next prime is 1336387007. The reversal of 1336386987 is 7896836331.

It is not a de Polignac number, because 1336386987 - 2²³ = 1327998379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1336386587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39814 + ... + 65252.

It is an arithmetic number, because the mean of its divisors is an integer number (86814000).

Almost surely, 2^1336386987 is an apocalyptic number.

1336386987 is a deficient number, since it is larger than the sum of its proper divisors (747149013).

1336386987 is a wasteful number, since it uses less digits than its factorization.

1336386987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25907 (or 25904 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 1336386987 is about 36556.6271283334. The cubic root of 1336386987 is about 1101.4820208462.

It can be divided in two parts, 133638 and 6987, that added together give a square (140625 = 375²).

The spelling of 1336386987 in words is "one billion, three hundred thirty-six million, three hundred eighty-six thousand, nine hundred eighty-seven".