3971634974 has 4 divisors (see below), whose sum is σ = 5957452464. Its totient is φ = 1985817486.

The previous prime is 3971634949. The next prime is 3971635001. The reversal of 3971634974 is 4794361793.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 992908742 + ... + 992908745.

It is an arithmetic number, because the mean of its divisors is an integer number (1489363116).

Almost surely, 2^3971634974 is an apocalyptic number.

3971634974 is a deficient number, since it is larger than the sum of its proper divisors (1985817490).

3971634974 is a wasteful number, since it uses less digits than its factorization.

3971634974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985817489.

The product of its digits is 3429216, while the sum is 53.

The square root of 3971634974 is about 63020.9090223237. The cubic root of 3971634974 is about 1583.6399248602.

The spelling of 3971634974 in words is "three billion, nine hundred seventy-one million, six hundred thirty-four thousand, nine hundred seventy-four".