1598098987 has 16 divisors (see below), whose sum is σ = 1699141120. Its totient is φ = 1502987400.

The previous prime is 1598098981. The next prime is 1598099003. The reversal of 1598098987 is 7898908951.

It is not a de Polignac number, because 1598098987 - 2¹⁵ = 1598066219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1598098981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1034938 + ... + 1036480.

It is an arithmetic number, because the mean of its divisors is an integer number (106196320).

Almost surely, 2^1598098987 is an apocalyptic number.

1598098987 is a deficient number, since it is larger than the sum of its proper divisors (101042133).

1598098987 is an equidigital number, since it uses as much as digits as its factorization.

1598098987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751 (or 1713 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 64.

The square root of 1598098987 is about 39976.2302750022. The cubic root of 1598098987 is about 1169.1436953987.

The spelling of 1598098987 in words is "one billion, five hundred ninety-eight million, ninety-eight thousand, nine hundred eighty-seven".