1396507 has 4 divisors (see below), whose sum is σ = 1596016. Its totient is φ = 1197000.

The previous prime is 1396487. The next prime is 1396513. The reversal of 1396507 is 7056931.

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

It is a de Polignac number, because none of the positive numbers 2^k-1396507 is a prime.

It is an Ulam number.

It is a Duffinian number.

1396507 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1396517) 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, 99744 + ... + 99757.

It is an arithmetic number, because the mean of its divisors is an integer number (399004).

2^1396507 is an apocalyptic number.

1396507 is a deficient number, since it is larger than the sum of its proper divisors (199509).

1396507 is an equidigital number, since it uses as much as digits as its factorization.

1396507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199508.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 1396507 is about 1181.7389728701. The cubic root of 1396507 is about 111.7757790941.

The spelling of 1396507 in words is "one million, three hundred ninety-six thousand, five hundred seven".