1598403641 has 4 divisors (see below), whose sum is σ = 1601686272. Its totient is φ = 1595121012.

The previous prime is 1598403619. The next prime is 1598403659. The reversal of 1598403641 is 1463048951.

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 a de Polignac number, because none of the positive numbers 2^k-1598403641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1598403601) 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, 1640585 + ... + 1641558.

It is an arithmetic number, because the mean of its divisors is an integer number (400421568).

Almost surely, 2^1598403641 is an apocalyptic number.

It is an amenable number.

1598403641 is a deficient number, since it is larger than the sum of its proper divisors (3282631).

1598403641 is an equidigital number, since it uses as much as digits as its factorization.

1598403641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282630.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 1598403641 is about 39980.0405327458. The cubic root of 1598403641 is about 1169.2179840118.

The spelling of 1598403641 in words is "one billion, five hundred ninety-eight million, four hundred three thousand, six hundred forty-one".