1074378791 has 2 divisors, whose sum is σ = 1074378792. Its totient is φ = 1074378790.

The previous prime is 1074378757. The next prime is 1074378793. The reversal of 1074378791 is 1978734701.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1074378791 - 2⁶ = 1074378727 is a prime.

It is a super-3 number, since 3×1074378791³ (a number of 28 digits) contains 333 as substring.

Together with 1074378793, 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 (1074378793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537189395 + 537189396.

It is an arithmetic number, because the mean of its divisors is an integer number (537189396).

Almost surely, 2^1074378791 is an apocalyptic number.

1074378791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1074378791 is an equidigital number, since it uses as much as digits as its factorization.

1074378791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 296352, while the sum is 47.

The square root of 1074378791 is about 32777.7179040884. The cubic root of 1074378791 is about 1024.2024463295.

The spelling of 1074378791 in words is "one billion, seventy-four million, three hundred seventy-eight thousand, seven hundred ninety-one".