1386690873 has 8 divisors (see below), whose sum is σ = 1849723008. Its totient is φ = 924059664.

The previous prime is 1386690869. The next prime is 1386690919. The reversal of 1386690873 is 3780966831.

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

It is not a de Polignac number, because 1386690873 - 2² = 1386690869 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1386690803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92065 + ... + 106062.

It is an arithmetic number, because the mean of its divisors is an integer number (231215376).

Almost surely, 2^1386690873 is an apocalyptic number.

It is an amenable number.

1386690873 is a deficient number, since it is larger than the sum of its proper divisors (463032135).

1386690873 is a wasteful number, since it uses less digits than its factorization.

1386690873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200463.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 1386690873 is about 37238.2984707948. The cubic root of 1386690873 is about 1115.1327030081.

The spelling of 1386690873 in words is "one billion, three hundred eighty-six million, six hundred ninety thousand, eight hundred seventy-three".