3139924 has 6 divisors (see below), whose sum is σ = 5494874. Its totient is φ = 1569960.

The previous prime is 3139919. The next prime is 3139943. The reversal of 3139924 is 4299313.

It can be written as a sum of positive squares in only one way, i.e., 2624400 + 515524 = 1620^2 + 718^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 392487 + ... + 392494.

Almost surely, 2^3139924 is an apocalyptic number.

It is an amenable number.

3139924 is a deficient number, since it is larger than the sum of its proper divisors (2354950).

3139924 is a wasteful number, since it uses less digits than its factorization.

3139924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784985 (or 784983 counting only the distinct ones).

The product of its digits is 5832, while the sum is 31.

The square root of 3139924 is about 1771.9830698965. The cubic root of 3139924 is about 146.4332536165.

It can be divided in two parts, 3139 and 924, that multiplied together give a triangular number (2900436 = T₂₄₀₈).

The spelling of 3139924 in words is "three million, one hundred thirty-nine thousand, nine hundred twenty-four".