3937998546 has 20 divisors (see below), whose sum is σ = 8824034142. Its totient is φ = 1312666128.

The previous prime is 3937998517. The next prime is 3937998593. The reversal of 3937998546 is 6458997393.

It can be written as a sum of positive squares in only one way, i.e., 2590301025 + 1347697521 = 50895^2 + 36711^2 .

It is a super-2 number, since 2×3937998546² = 31015665096596228232, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12154155 + ... + 12154478.

Almost surely, 2^3937998546 is an apocalyptic number.

3937998546 is an abundant number, since it is smaller than the sum of its proper divisors (4886035596).

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

3937998546 is a wasteful number, since it uses less digits than its factorization.

3937998546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24308647 (or 24308638 counting only the distinct ones).

The product of its digits is 44089920, while the sum is 63.

The square root of 3937998546 is about 62753.4743739341. The cubic root of 3937998546 is about 1579.1565420155.

The spelling of 3937998546 in words is "three billion, nine hundred thirty-seven million, nine hundred ninety-eight thousand, five hundred forty-six".