3878533977 has 4 divisors (see below), whose sum is σ = 5171378640. Its totient is φ = 2585689316.

The previous prime is 3878533951. The next prime is 3878533987. The reversal of 3878533977 is 7793358783.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3878533977 - 2⁶ = 3878533913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3878533977.

It is not an unprimeable number, because it can be changed into a prime (3878533987) 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, 646422327 + ... + 646422332.

It is an arithmetic number, because the mean of its divisors is an integer number (1292844660).

Almost surely, 2^3878533977 is an apocalyptic number.

It is an amenable number.

3878533977 is a deficient number, since it is larger than the sum of its proper divisors (1292844663).

3878533977 is a wasteful number, since it uses less digits than its factorization.

3878533977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292844662.

The product of its digits is 26671680, while the sum is 60.

The square root of 3878533977 is about 62277.8771073645. The cubic root of 3878533977 is about 1571.1676678657.

The spelling of 3878533977 in words is "three billion, eight hundred seventy-eight million, five hundred thirty-three thousand, nine hundred seventy-seven".