1939291967 has 2 divisors, whose sum is σ = 1939291968. Its totient is φ = 1939291966.

The previous prime is 1939291919. The next prime is 1939291969. The reversal of 1939291967 is 7691929391.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1939291967 - 2⁶ = 1939291903 is a prime.

Together with 1939291969, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1939291969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 969645983 + 969645984.

It is an arithmetic number, because the mean of its divisors is an integer number (969645984).

Almost surely, 2^1939291967 is an apocalyptic number.

1939291967 is a deficient number, since it is larger than the sum of its proper divisors (1).

1939291967 is an equidigital number, since it uses as much as digits as its factorization.

1939291967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1653372, while the sum is 56.

The square root of 1939291967 is about 44037.3928270056. The cubic root of 1939291967 is about 1247.0419584739.

The spelling of 1939291967 in words is "one billion, nine hundred thirty-nine million, two hundred ninety-one thousand, nine hundred sixty-seven".