1389653 has 4 divisors (see below), whose sum is σ = 1399008. Its totient is φ = 1380300.

The previous prime is 1389643. The next prime is 1389667. The reversal of 1389653 is 3569831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1389653 - 2⁶ = 1389589 is a prime.

It is a super-2 number, since 2×1389653² = 3862270920818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389623) 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, 4451 + ... + 4752.

It is an arithmetic number, because the mean of its divisors is an integer number (349752).

2^1389653 is an apocalyptic number.

It is an amenable number.

1389653 is a deficient number, since it is larger than the sum of its proper divisors (9355).

1389653 is an equidigital number, since it uses as much as digits as its factorization.

1389653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9354.

The product of its digits is 19440, while the sum is 35.

The square root of 1389653 is about 1178.8354422904. The cubic root of 1389653 is about 111.5926154421.

The spelling of 1389653 in words is "one million, three hundred eighty-nine thousand, six hundred fifty-three".