993212929 has 4 divisors (see below), whose sum is σ = 999539284. Its totient is φ = 986886576.

The previous prime is 993212921. The next prime is 993212989. The reversal of 993212929 is 929212399.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 355397904 + 637815025 = 18852^2 + 25255^2 .

It is a cyclic number.

It is not a de Polignac number, because 993212929 - 2³ = 993212921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (993212921) 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, 3162942 + ... + 3163255.

It is an arithmetic number, because the mean of its divisors is an integer number (249884821).

Almost surely, 2^993212929 is an apocalyptic number.

It is an amenable number.

993212929 is a deficient number, since it is larger than the sum of its proper divisors (6326355).

993212929 is a wasteful number, since it uses less digits than its factorization.

993212929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6326354.

The product of its digits is 157464, while the sum is 46.

The square root of 993212929 is about 31515.2808808679. The cubic root of 993212929 is about 997.7325053542.

The spelling of 993212929 in words is "nine hundred ninety-three million, two hundred twelve thousand, nine hundred twenty-nine".