3912929 has 4 divisors (see below), whose sum is σ = 3917076. Its totient is φ = 3908784.

The previous prime is 3912919. The next prime is 3912943. The reversal of 3912929 is 9292193.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2958400 + 954529 = 1720^2 + 977^2 .

It is a cyclic number.

It is not a de Polignac number, because 3912929 - 2⁸ = 3912673 is a prime.

It is a super-2 number, since 2×3912929² = 30622026718082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3912919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107 + ... + 2799.

It is an arithmetic number, because the mean of its divisors is an integer number (979269).

Almost surely, 2^3912929 is an apocalyptic number.

It is an amenable number.

3912929 is a deficient number, since it is larger than the sum of its proper divisors (4147).

3912929 is a wasteful number, since it uses less digits than its factorization.

3912929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4146.

The product of its digits is 8748, while the sum is 35.

The square root of 3912929 is about 1978.1124841626. The cubic root of 3912929 is about 157.5798402628.

The spelling of 3912929 in words is "three million, nine hundred twelve thousand, nine hundred twenty-nine".