3936698990 has 64 divisors (see below), whose sum is σ = 8585699328. Its totient is φ = 1270857600.

The previous prime is 3936698971. The next prime is 3936699001. The reversal of 3936698990 is 998966393.

It is a happy number.

3936698990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55775 + ... + 104805.

It is an arithmetic number, because the mean of its divisors is an integer number (134151552).

Almost surely, 2^3936698990 is an apocalyptic number.

3936698990 is an abundant number, since it is smaller than the sum of its proper divisors (4649000338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3936698990 is a wasteful number, since it uses less digits than its factorization.

3936698990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49113.

The product of its (nonzero) digits is 17006112, while the sum is 62.

The square root of 3936698990 is about 62743.1190649620. The cubic root of 3936698990 is about 1578.9828134813.

The spelling of 3936698990 in words is "three billion, nine hundred thirty-six million, six hundred ninety-eight thousand, nine hundred ninety".