3907743428 has 6 divisors (see below), whose sum is σ = 6838551006. Its totient is φ = 1953871712.

The previous prime is 3907743383. The next prime is 3907743431. The reversal of 3907743428 is 8243477093.

It can be written as a sum of positive squares in only one way, i.e., 3658798144 + 248945284 = 60488^2 + 15778^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488467925 + ... + 488467932.

It is an arithmetic number, because the mean of its divisors is an integer number (1139758501).

Almost surely, 2^3907743428 is an apocalyptic number.

It is an amenable number.

3907743428 is a deficient number, since it is larger than the sum of its proper divisors (2930807578).

3907743428 is a wasteful number, since it uses less digits than its factorization.

3907743428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976935861 (or 976935859 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 47.

The square root of 3907743428 is about 62511.9462822907. The cubic root of 3907743428 is about 1575.1019909430.

The spelling of 3907743428 in words is "three billion, nine hundred seven million, seven hundred forty-three thousand, four hundred twenty-eight".