1387702 has 4 divisors (see below), whose sum is σ = 2081556. Its totient is φ = 693850.

The previous prime is 1387691. The next prime is 1387717. The reversal of 1387702 is 2077831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2077831 = 7 ⋅296833.

It is a super-3 number, since 3×1387702³ = 8016963334252177224, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 346924 + ... + 346927.

It is an arithmetic number, because the mean of its divisors is an integer number (520389).

2^1387702 is an apocalyptic number.

1387702 is a deficient number, since it is larger than the sum of its proper divisors (693854).

1387702 is an equidigital number, since it uses as much as digits as its factorization.

1387702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693853.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 1387702 is about 1178.0076400431. The cubic root of 1387702 is about 111.5403675884.

The spelling of 1387702 in words is "one million, three hundred eighty-seven thousand, seven hundred two".