3874878071 has 4 divisors (see below), whose sum is σ = 3947989032. Its totient is φ = 3801767112.

The previous prime is 3874878023. The next prime is 3874878079. The reversal of 3874878071 is 1708784783.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3874878071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53), and also a Moran number because the ratio is a prime number: 73110907 = 3874878071 / (3 + 8 + 7 + 4 + 8 + 7 + 8 + 0 + 7 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3874878079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36555401 + ... + 36555506.

It is an arithmetic number, because the mean of its divisors is an integer number (986997258).

Almost surely, 2^3874878071 is an apocalyptic number.

3874878071 is a deficient number, since it is larger than the sum of its proper divisors (73110961).

3874878071 is an equidigital number, since it uses as much as digits as its factorization.

3874878071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73110960.

The product of its (nonzero) digits is 2107392, while the sum is 53.

The square root of 3874878071 is about 62248.5186249440. The cubic root of 3874878071 is about 1570.6738518121.

The spelling of 3874878071 in words is "three billion, eight hundred seventy-four million, eight hundred seventy-eight thousand, seventy-one".