1395089823 has 8 divisors (see below), whose sum is σ = 1860367536. Its totient is φ = 929936000.

The previous prime is 1395089803. The next prime is 1395089833. The reversal of 1395089823 is 3289805931.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1395089823 - 2⁸ = 1395089567 is a prime.

It is a super-2 number, since 2×1395089823² = 3892551228476342658, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395089803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378 + ... + 52823.

It is an arithmetic number, because the mean of its divisors is an integer number (232545942).

Almost surely, 2^1395089823 is an apocalyptic number.

1395089823 is a deficient number, since it is larger than the sum of its proper divisors (465277713).

1395089823 is an equidigital number, since it uses as much as digits as its factorization.

1395089823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61945.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 1395089823 is about 37350.9012341068. The cubic root of 1395089823 is about 1117.3795623148.

It can be divided in two parts, 139508 and 9823, that added together give a triangular number (149331 = T₅₄₆).

The spelling of 1395089823 in words is "one billion, three hundred ninety-five million, eighty-nine thousand, eight hundred twenty-three".