3731684994 has 24 divisors (see below), whose sum is σ = 8560925100. Its totient is φ = 1170724608.

The previous prime is 3731684947. The next prime is 3731685017. The reversal of 3731684994 is 4994861373.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3555140625 + 176544369 = 59625^2 + 13287^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3731684994.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6097219 + ... + 6097830.

Almost surely, 2^3731684994 is an apocalyptic number.

3731684994 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

3731684994 is an abundant number, since it is smaller than the sum of its proper divisors (4829240106).

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

3731684994 is a wasteful number, since it uses less digits than its factorization.

3731684994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12195074 (or 12195071 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 3731684994 is about 61087.5191344353. The cubic root of 3731684994 is about 1551.0828359970.

The spelling of 3731684994 in words is "three billion, seven hundred thirty-one million, six hundred eighty-four thousand, nine hundred ninety-four".