3977820698 has 16 divisors (see below), whose sum is σ = 6260950080. Its totient is φ = 1891803936.

The previous prime is 3977820673. The next prime is 3977820727. The reversal of 3977820698 is 8960287793.

3977820698 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233315 + ... + 249782.

It is an arithmetic number, because the mean of its divisors is an integer number (391309380).

Almost surely, 2^3977820698 is an apocalyptic number.

3977820698 is a deficient number, since it is larger than the sum of its proper divisors (2283129382).

3977820698 is a wasteful number, since it uses less digits than its factorization.

3977820698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483301.

The product of its (nonzero) digits is 9144576, while the sum is 59.

The square root of 3977820698 is about 63069.9666877984. The cubic root of 3977820698 is about 1584.4616585035.

The spelling of 3977820698 in words is "three billion, nine hundred seventy-seven million, eight hundred twenty thousand, six hundred ninety-eight".