3967395694 has 4 divisors (see below), whose sum is σ = 5951093544. Its totient is φ = 1983697846.

The previous prime is 3967395683. The next prime is 3967395703. The reversal of 3967395694 is 4965937693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4965937693 = 10103 ⋅491531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991848922 + ... + 991848925.

It is an arithmetic number, because the mean of its divisors is an integer number (1487773386).

Almost surely, 2^3967395694 is an apocalyptic number.

3967395694 is a deficient number, since it is larger than the sum of its proper divisors (1983697850).

3967395694 is a wasteful number, since it uses less digits than its factorization.

3967395694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983697849.

The product of its digits is 33067440, while the sum is 61.

The square root of 3967395694 is about 62987.2661257813. The cubic root of 3967395694 is about 1583.0762709193.

The spelling of 3967395694 in words is "three billion, nine hundred sixty-seven million, three hundred ninety-five thousand, six hundred ninety-four".