1378627 has 4 divisors (see below), whose sum is σ = 1381120. Its totient is φ = 1376136.

The previous prime is 1378613. The next prime is 1378639. The reversal of 1378627 is 7268731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7268731 = 257 ⋅28283.

It is a cyclic number.

It is not a de Polignac number, because 1378627 - 2⁷ = 1378499 is a prime.

It is a super-3 number, since 3×1378627³ = 7860706734737333649, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1378592 and 1378601.

It is not an unprimeable number, because it can be changed into a prime (1378427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3 + ... + 1660.

It is an arithmetic number, because the mean of its divisors is an integer number (345280).

2^1378627 is an apocalyptic number.

1378627 is a deficient number, since it is larger than the sum of its proper divisors (2493).

1378627 is an equidigital number, since it uses as much as digits as its factorization.

1378627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492.

The product of its digits is 14112, while the sum is 34.

The square root of 1378627 is about 1174.1494794105. The cubic root of 1378627 is about 111.2966929360.

The spelling of 1378627 in words is "one million, three hundred seventy-eight thousand, six hundred twenty-seven".