1939892067 has 24 divisors (see below), whose sum is σ = 2870177024. Its totient is φ = 1261887984.

The previous prime is 1939892047. The next prime is 1939892069. The reversal of 1939892067 is 7602989391.

1939892067 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1939892067 - 2¹⁰ = 1939891043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1939892069) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 502338 + ... + 506184.

Almost surely, 2^1939892067 is an apocalyptic number.

1939892067 is a deficient number, since it is larger than the sum of its proper divisors (930284957).

1939892067 is a wasteful number, since it uses less digits than its factorization.

1939892067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5199 (or 5196 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 1939892067 is about 44044.2058277817. The cubic root of 1939892067 is about 1247.1705746072.

The spelling of 1939892067 in words is "one billion, nine hundred thirty-nine million, eight hundred ninety-two thousand, sixty-seven".