1396249 has 4 divisors (see below), whose sum is σ = 1400164. Its totient is φ = 1392336.

The previous prime is 1396247. The next prime is 1396259. The reversal of 1396249 is 9426931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9426931 = 47 ⋅200573.

It can be written as a sum of positive squares in 2 ways, for example, as 1177225 + 219024 = 1085^2 + 468^2 .

It is a cyclic number.

It is not a de Polignac number, because 1396249 - 2¹ = 1396247 is a prime.

It is a super-2 number, since 2×1396249² = 3899022540002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1396247) 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, 1362 + ... + 2155.

It is an arithmetic number, because the mean of its divisors is an integer number (350041).

2^1396249 is an apocalyptic number.

It is an amenable number.

1396249 is a deficient number, since it is larger than the sum of its proper divisors (3915).

1396249 is an equidigital number, since it uses as much as digits as its factorization.

1396249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3914.

The product of its digits is 11664, while the sum is 34.

The square root of 1396249 is about 1181.6298066654. The cubic root of 1396249 is about 111.7688952696.

The spelling of 1396249 in words is "one million, three hundred ninety-six thousand, two hundred forty-nine".