3958316078 has 4 divisors (see below), whose sum is σ = 5937474120. Its totient is φ = 1979158038.

The previous prime is 3958316071. The next prime is 3958316099. The reversal of 3958316078 is 8706138593.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8706138593 = 23039 ⋅377887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3958316071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 989579018 + ... + 989579021.

It is an arithmetic number, because the mean of its divisors is an integer number (1484368530).

Almost surely, 2^3958316078 is an apocalyptic number.

3958316078 is a deficient number, since it is larger than the sum of its proper divisors (1979158042).

3958316078 is a wasteful number, since it uses less digits than its factorization.

3958316078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979158041.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 3958316078 is about 62915.1498289561. The cubic root of 3958316078 is about 1581.8676944168.

The spelling of 3958316078 in words is "three billion, nine hundred fifty-eight million, three hundred sixteen thousand, seventy-eight".