3691994548 has 24 divisors (see below), whose sum is σ = 7058882880. Its totient is φ = 1675672320.

The previous prime is 3691994543. The next prime is 3691994639. The reversal of 3691994548 is 8454991963.

It is a junction number, because it is equal to n+sod(n) for n = 3691994492 and 3691994501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3691994543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32728 + ... + 91951.

It is an arithmetic number, because the mean of its divisors is an integer number (294120120).

Almost surely, 2^3691994548 is an apocalyptic number.

It is an amenable number.

3691994548 is a deficient number, since it is larger than the sum of its proper divisors (3366888332).

3691994548 is a wasteful number, since it uses less digits than its factorization.

3691994548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125367 (or 125365 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 58.

The square root of 3691994548 is about 60761.7852601452. The cubic root of 3691994548 is about 1545.5640840246.

The spelling of 3691994548 in words is "three billion, six hundred ninety-one million, nine hundred ninety-four thousand, five hundred forty-eight".