160987904 has 72 divisors (see below), whose sum is σ = 400689408. Its totient is φ = 62714880.

The previous prime is 160987891. The next prime is 160987913. The reversal of 160987904 is 409789061.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15629 + ... + 23795.

Almost surely, 2^160987904 is an apocalyptic number.

160987904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 160987904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200344704).

160987904 is an abundant number, since it is smaller than the sum of its proper divisors (239701504).

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

160987904 is an equidigital number, since it uses as much as digits as its factorization.

160987904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8201 (or 8187 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 160987904 is about 12688.1008823228. The cubic root of 160987904 is about 543.9985582430.

The spelling of 160987904 in words is "one hundred sixty million, nine hundred eighty-seven thousand, nine hundred four".