1934590643 has 4 divisors (see below), whose sum is σ = 1957899048. Its totient is φ = 1911282240.

The previous prime is 1934590613. The next prime is 1934590673. The reversal of 1934590643 is 3460954391.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1934590613) and next prime (1934590673).

It is a cyclic number.

It is not a de Polignac number, because 1934590643 - 2⁶ = 1934590579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1934590594 and 1934590603.

It is not an unprimeable number, because it can be changed into a prime (1934590613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11654078 + ... + 11654243.

It is an arithmetic number, because the mean of its divisors is an integer number (489474762).

Almost surely, 2^1934590643 is an apocalyptic number.

1934590643 is a deficient number, since it is larger than the sum of its proper divisors (23308405).

1934590643 is an equidigital number, since it uses as much as digits as its factorization.

1934590643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23308404.

The product of its (nonzero) digits is 349920, while the sum is 44.

The square root of 1934590643 is about 43983.9816637830. The cubic root of 1934590643 is about 1246.0334302132.

The spelling of 1934590643 in words is "one billion, nine hundred thirty-four million, five hundred ninety thousand, six hundred forty-three".