1996529397 has 4 divisors (see below), whose sum is σ = 2662039200. Its totient is φ = 1331019596.

The previous prime is 1996529383. The next prime is 1996529459. The reversal of 1996529397 is 7939256991.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1996529397 - 2⁶ = 1996529333 is a prime.

It is a super-2 number, since 2×1996529397² = 7972259266170367218, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1996529397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1996529377) 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, 332754897 + ... + 332754902.

It is an arithmetic number, because the mean of its divisors is an integer number (665509800).

Almost surely, 2^1996529397 is an apocalyptic number.

It is an amenable number.

1996529397 is a deficient number, since it is larger than the sum of its proper divisors (665509803).

1996529397 is an equidigital number, since it uses as much as digits as its factorization.

1996529397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665509802.

The product of its digits is 8266860, while the sum is 60.

The square root of 1996529397 is about 44682.5401807015. The cubic root of 1996529397 is about 1259.1918469738.

The spelling of 1996529397 in words is "one billion, nine hundred ninety-six million, five hundred twenty-nine thousand, three hundred ninety-seven".