3907988 has 12 divisors (see below), whose sum is σ = 7816032. Its totient is φ = 1674840.

The previous prime is 3907987. The next prime is 3907991. The reversal of 3907988 is 8897093.

3907988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

3907988 is an admirable number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3907987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69758 + ... + 69813.

It is an arithmetic number, because the mean of its divisors is an integer number (651336).

Almost surely, 2^3907988 is an apocalyptic number.

It is an amenable number.

3907988 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3907988 is a wasteful number, since it uses less digits than its factorization.

3907988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139582 (or 139580 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 3907988 is about 1976.8631717952. The cubic root of 3907988 is about 157.5134850300.

The spelling of 3907988 in words is "three million, nine hundred seven thousand, nine hundred eighty-eight".