1599398961 has 8 divisors (see below), whose sum is σ = 2158225440. Its totient is φ = 1053419232.

The previous prime is 1599398959. The next prime is 1599398987. The reversal of 1599398961 is 1698939951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1599398961 - 2¹ = 1599398959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1599398895 and 1599398904.

It is not an unprimeable number, because it can be changed into a prime (1599398921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3211396 + ... + 3211893.

It is an arithmetic number, because the mean of its divisors is an integer number (269778180).

Almost surely, 2^1599398961 is an apocalyptic number.

It is an amenable number.

1599398961 is a deficient number, since it is larger than the sum of its proper divisors (558826479).

1599398961 is an equidigital number, since it uses as much as digits as its factorization.

1599398961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6423375.

The product of its digits is 4723920, while the sum is 60.

The square root of 1599398961 is about 39992.4863068052. The cubic root of 1599398961 is about 1169.4606228847.

The spelling of 1599398961 in words is "one billion, five hundred ninety-nine million, three hundred ninety-eight thousand, nine hundred sixty-one".