996434789 has 4 divisors (see below), whose sum is σ = 1138782624. Its totient is φ = 854086956.

The previous prime is 996434779. The next prime is 996434797. The reversal of 996434789 is 987434699.

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 996434789 - 2¹² = 996430693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996434729) 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, 71173907 + ... + 71173920.

It is an arithmetic number, because the mean of its divisors is an integer number (284695656).

Almost surely, 2^996434789 is an apocalyptic number.

It is an amenable number.

996434789 is a deficient number, since it is larger than the sum of its proper divisors (142347835).

996434789 is a wasteful number, since it uses less digits than its factorization.

996434789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142347834.

The product of its digits is 11757312, while the sum is 59.

The square root of 996434789 is about 31566.3553328540. The cubic root of 996434789 is about 998.8101812261.

The spelling of 996434789 in words is "nine hundred ninety-six million, four hundred thirty-four thousand, seven hundred eighty-nine".