3139738477 has 4 divisors (see below), whose sum is σ = 3140216640. Its totient is φ = 3139260316.

The previous prime is 3139738453. The next prime is 3139738493. The reversal of 3139738477 is 7748379313.

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 3139738477 - 2¹⁹ = 3139214189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3139138477) 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, 229093 + ... + 242410.

It is an arithmetic number, because the mean of its divisors is an integer number (785054160).

Almost surely, 2^3139738477 is an apocalyptic number.

It is an amenable number.

3139738477 is a deficient number, since it is larger than the sum of its proper divisors (478163).

3139738477 is an equidigital number, since it uses as much as digits as its factorization.

3139738477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478162.

The product of its digits is 2667168, while the sum is 52.

The square root of 3139738477 is about 56033.3693168633. The cubic root of 3139738477 is about 1464.3036954755.

The spelling of 3139738477 in words is "three billion, one hundred thirty-nine million, seven hundred thirty-eight thousand, four hundred seventy-seven".