1087439898 has 16 divisors (see below), whose sum is σ = 2202410880. Its totient is φ = 357891456.

The previous prime is 1087439897. The next prime is 1087439923. The reversal of 1087439898 is 8989347801.

It is not an unprimeable number, because it can be changed into a prime (1087439891) 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, 1146615 + ... + 1147562.

It is an arithmetic number, because the mean of its divisors is an integer number (137650680).

Almost surely, 2^1087439898 is an apocalyptic number.

1087439898 is an abundant number, since it is smaller than the sum of its proper divisors (1114970982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1087439898 is a wasteful number, since it uses less digits than its factorization.

1087439898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294261.

The product of its (nonzero) digits is 3483648, while the sum is 57.

The square root of 1087439898 is about 32976.3536189191. The cubic root of 1087439898 is about 1028.3361133262.

The spelling of 1087439898 in words is "one billion, eighty-seven million, four hundred thirty-nine thousand, eight hundred ninety-eight".