929903939 has 4 divisors (see below), whose sum is σ = 951529656. Its totient is φ = 908278224.

The previous prime is 929903899. The next prime is 929903941. The reversal of 929903939 is 939309929.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 939309929 = 797 ⋅1178557.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-929903939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (929903959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10812794 + ... + 10812879.

It is an arithmetic number, because the mean of its divisors is an integer number (237882414).

Almost surely, 2^929903939 is an apocalyptic number.

929903939 is a deficient number, since it is larger than the sum of its proper divisors (21625717).

929903939 is a wasteful number, since it uses less digits than its factorization.

929903939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21625716.

The product of its (nonzero) digits is 1062882, while the sum is 53.

The square root of 929903939 is about 30494.3263411409. The cubic root of 929903939 is about 976.0663989332.

The spelling of 929903939 in words is "nine hundred twenty-nine million, nine hundred three thousand, nine hundred thirty-nine".