1920233797 has 2 divisors, whose sum is σ = 1920233798. Its totient is φ = 1920233796.

The previous prime is 1920233779. The next prime is 1920233849. The reversal of 1920233797 is 7973320291.

Together with previous prime (1920233779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1307473281 + 612760516 = 36159^2 + 24754^2 .

It is a cyclic number.

It is not a de Polignac number, because 1920233797 - 2⁷ = 1920233669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1920233737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 960116898 + 960116899.

It is an arithmetic number, because the mean of its divisors is an integer number (960116899).

Almost surely, 2^1920233797 is an apocalyptic number.

It is an amenable number.

1920233797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1920233797 is an equidigital number, since it uses as much as digits as its factorization.

1920233797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 1920233797 is about 43820.4723502611. The cubic root of 1920233797 is about 1242.9434490589.

The spelling of 1920233797 in words is "one billion, nine hundred twenty million, two hundred thirty-three thousand, seven hundred ninety-seven".