3971087774 has 4 divisors (see below), whose sum is σ = 5956631664. Its totient is φ = 1985543886.

The previous prime is 3971087741. The next prime is 3971087819. The reversal of 3971087774 is 4777801793.

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: 4777801793 = 71 ⋅67292983.

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, 992771942 + ... + 992771945.

It is an arithmetic number, because the mean of its divisors is an integer number (1489157916).

Almost surely, 2^3971087774 is an apocalyptic number.

3971087774 is a deficient number, since it is larger than the sum of its proper divisors (1985543890).

3971087774 is a wasteful number, since it uses less digits than its factorization.

3971087774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985543889.

The product of its (nonzero) digits is 2074464, while the sum is 53.

The square root of 3971087774 is about 63016.5674565031. The cubic root of 3971087774 is about 1583.5671917941.

The spelling of 3971087774 in words is "three billion, nine hundred seventy-one million, eighty-seven thousand, seven hundred seventy-four".