1387898 has 8 divisors (see below), whose sum is σ = 2088480. Its totient is φ = 691740.

The previous prime is 1387879. The next prime is 1387913. The reversal of 1387898 is 8987831.

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

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, 158 + ... + 1673.

It is an arithmetic number, because the mean of its divisors is an integer number (261060).

2^1387898 is an apocalyptic number.

1387898 is a deficient number, since it is larger than the sum of its proper divisors (700582).

1387898 is a wasteful number, since it uses less digits than its factorization.

1387898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2212.

The product of its digits is 96768, while the sum is 44.

The square root of 1387898 is about 1178.0908284169. The cubic root of 1387898 is about 111.5456186877.

The spelling of 1387898 in words is "one million, three hundred eighty-seven thousand, eight hundred ninety-eight".