789281949 has 4 divisors (see below), whose sum is σ = 1052375936. Its totient is φ = 526187964.

The previous prime is 789281923. The next prime is 789281953. The reversal of 789281949 is 949182987.

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, and also an emirpimes, since its reverse is a distinct semiprime: 949182987 = 3 ⋅316394329.

It is not a de Polignac number, because 789281949 - 2⁷ = 789281821 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 (789281149) 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, 131546989 + ... + 131546994.

It is an arithmetic number, because the mean of its divisors is an integer number (263093984).

Almost surely, 2^789281949 is an apocalyptic number.

It is an amenable number.

789281949 is a deficient number, since it is larger than the sum of its proper divisors (263093987).

789281949 is a wasteful number, since it uses less digits than its factorization.

789281949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263093986.

The product of its digits is 2612736, while the sum is 57.

The square root of 789281949 is about 28094.1621871876. The cubic root of 789281949 is about 924.1533812861.

The spelling of 789281949 in words is "seven hundred eighty-nine million, two hundred eighty-one thousand, nine hundred forty-nine".