1395787 has 4 divisors (see below), whose sum is σ = 1411560. Its totient is φ = 1380016.

The previous prime is 1395781. The next prime is 1395791. The reversal of 1395787 is 7875931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1395787 - 2⁷ = 1395659 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1395781) 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, 7753 + ... + 7930.

It is an arithmetic number, because the mean of its divisors is an integer number (352890).

2^1395787 is an apocalyptic number.

1395787 is a deficient number, since it is larger than the sum of its proper divisors (15773).

1395787 is an equidigital number, since it uses as much as digits as its factorization.

1395787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15772.

The product of its digits is 52920, while the sum is 40.

The square root of 1395787 is about 1181.4342977923. The cubic root of 1395787 is about 111.7565663020.

The spelling of 1395787 in words is "one million, three hundred ninety-five thousand, seven hundred eighty-seven".