939428699 has 4 divisors (see below), whose sum is σ = 1024831320. Its totient is φ = 854026080.

The previous prime is 939428689. The next prime is 939428717. The reversal of 939428699 is 996824939.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 996824939 = 11 ⋅90620449.

It is a cyclic number.

It is not a de Polignac number, because 939428699 - 2⁴ = 939428683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (939428669) 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, 42701294 + ... + 42701315.

It is an arithmetic number, because the mean of its divisors is an integer number (256207830).

Almost surely, 2^939428699 is an apocalyptic number.

939428699 is a deficient number, since it is larger than the sum of its proper divisors (85402621).

939428699 is a wasteful number, since it uses less digits than its factorization.

939428699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85402620.

The product of its digits is 7558272, while the sum is 59.

The square root of 939428699 is about 30650.1011254449. The cubic root of 939428699 is about 979.3876151204.

The spelling of 939428699 in words is "nine hundred thirty-nine million, four hundred twenty-eight thousand, six hundred ninety-nine".