3942902 has 4 divisors (see below), whose sum is σ = 5914356. Its totient is φ = 1971450.

The previous prime is 3942889. The next prime is 3942907. The reversal of 3942902 is 2092493.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3942907) 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 as a sum of consecutive naturals, namely, 985724 + ... + 985727.

It is an arithmetic number, because the mean of its divisors is an integer number (1478589).

Almost surely, 2^3942902 is an apocalyptic number.

3942902 is a deficient number, since it is larger than the sum of its proper divisors (1971454).

3942902 is a wasteful number, since it uses less digits than its factorization.

3942902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971453.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 3942902 is about 1985.6741928121. The cubic root of 3942902 is about 157.9811706451.

The spelling of 3942902 in words is "three million, nine hundred forty-two thousand, nine hundred two".