789449623 has 4 divisors (see below), whose sum is σ = 795476088. Its totient is φ = 783423160.

The previous prime is 789449611. The next prime is 789449657. The reversal of 789449623 is 326944987.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326944987 = 37 ⋅8836351.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-789449623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (789449693) 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, 3013036 + ... + 3013297.

It is an arithmetic number, because the mean of its divisors is an integer number (198869022).

Almost surely, 2^789449623 is an apocalyptic number.

789449623 is a deficient number, since it is larger than the sum of its proper divisors (6026465).

789449623 is a wasteful number, since it uses less digits than its factorization.

789449623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6026464.

The product of its digits is 2612736, while the sum is 52.

The square root of 789449623 is about 28097.1461718090. The cubic root of 789449623 is about 924.2188186213.

The spelling of 789449623 in words is "seven hundred eighty-nine million, four hundred forty-nine thousand, six hundred twenty-three".