3926890684 has 6 divisors (see below), whose sum is σ = 6872058704. Its totient is φ = 1963445340.

The previous prime is 3926890633. The next prime is 3926890687. The reversal of 3926890684 is 4860986293.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3926890687) 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 as a sum of consecutive naturals, namely, 490861332 + ... + 490861339.

Almost surely, 2^3926890684 is an apocalyptic number.

It is an amenable number.

3926890684 is a deficient number, since it is larger than the sum of its proper divisors (2945168020).

3926890684 is a wasteful number, since it uses less digits than its factorization.

3926890684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981722675 (or 981722673 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 55.

The square root of 3926890684 is about 62664.9079150365. The cubic root of 3926890684 is about 1577.6703749317.

The spelling of 3926890684 in words is "three billion, nine hundred twenty-six million, eight hundred ninety thousand, six hundred eighty-four".