1934409613 has 4 divisors (see below), whose sum is σ = 1966121308. Its totient is φ = 1902697920.

The previous prime is 1934409611. The next prime is 1934409619. The reversal of 1934409613 is 3169044391.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1076036809 + 858372804 = 32803^2 + 29298^2 .

It is a cyclic number.

It is not a de Polignac number, because 1934409613 - 2¹ = 1934409611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1934409611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15855756 + ... + 15855877.

It is an arithmetic number, because the mean of its divisors is an integer number (491530327).

Almost surely, 2^1934409613 is an apocalyptic number.

It is an amenable number.

1934409613 is a deficient number, since it is larger than the sum of its proper divisors (31711695).

1934409613 is an equidigital number, since it uses as much as digits as its factorization.

1934409613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31711694.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 1934409613 is about 43981.9237073596. The cubic root of 1934409613 is about 1245.9945629953.

The spelling of 1934409613 in words is "one billion, nine hundred thirty-four million, four hundred nine thousand, six hundred thirteen".