1387078982 has 8 divisors (see below), whose sum is σ = 2083514400. Its totient is φ = 692574184.

The previous prime is 1387078949. The next prime is 1387078991. The reversal of 1387078982 is 2898707831.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480857 + ... + 483732.

It is an arithmetic number, because the mean of its divisors is an integer number (260439300).

Almost surely, 2^1387078982 is an apocalyptic number.

1387078982 is a deficient number, since it is larger than the sum of its proper divisors (696435418).

1387078982 is an equidigital number, since it uses as much as digits as its factorization.

1387078982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965310.

The product of its (nonzero) digits is 1354752, while the sum is 53.

The square root of 1387078982 is about 37243.5092600040. The cubic root of 1387078982 is about 1115.2367282758.

The spelling of 1387078982 in words is "one billion, three hundred eighty-seven million, seventy-eight thousand, nine hundred eighty-two".