1396553 has 4 divisors (see below), whose sum is σ = 1444740. Its totient is φ = 1348368.

The previous prime is 1396547. The next prime is 1396559. The reversal of 1396553 is 3556931.

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

It is an interprime number because it is at equal distance from previous prime (1396547) and next prime (1396559).

It can be written as a sum of positive squares in 2 ways, for example, as 1138489 + 258064 = 1067^2 + 508^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1396553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396559) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 24050 + ... + 24107.

It is an arithmetic number, because the mean of its divisors is an integer number (361185).

2^1396553 is an apocalyptic number.

It is an amenable number.

1396553 is a deficient number, since it is larger than the sum of its proper divisors (48187).

1396553 is an equidigital number, since it uses as much as digits as its factorization.

1396553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48186.

The product of its digits is 12150, while the sum is 32.

The square root of 1396553 is about 1181.7584355527. The cubic root of 1396553 is about 111.7770063535. Note that the first 3 decimals are identical.

The spelling of 1396553 in words is "one million, three hundred ninety-six thousand, five hundred fifty-three".