3678957946 has 16 divisors (see below), whose sum is σ = 5621155848. Its totient is φ = 1805371200.

The previous prime is 3678957943. The next prime is 3678957949. The reversal of 3678957946 is 6497598763.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3678957943) and next prime (3678957949).

It can be written as a sum of positive squares in 4 ways, for example, as 1373517721 + 2305440225 = 37061^2 + 48015^2 .

It is not an unprimeable number, because it can be changed into a prime (3678957943) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23536 + ... + 88948.

Almost surely, 2^3678957946 is an apocalyptic number.

3678957946 is a deficient number, since it is larger than the sum of its proper divisors (1942197902).

3678957946 is a wasteful number, since it uses less digits than its factorization.

3678957946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65937.

The product of its digits is 68584320, while the sum is 64.

The square root of 3678957946 is about 60654.4140685573. The cubic root of 3678957946 is about 1543.7427860995.

The spelling of 3678957946 in words is "three billion, six hundred seventy-eight million, nine hundred fifty-seven thousand, nine hundred forty-six".