87119390 has 16 divisors (see below), whose sum is σ = 166039632. Its totient is φ = 32797824.

The previous prime is 87119369. The next prime is 87119401. The reversal of 87119390 is 9391178.

It is a super-2 number, since 2×87119390² = 15179576227944200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256064 + ... + 256403.

It is an arithmetic number, because the mean of its divisors is an integer number (10377477).

Almost surely, 2^87119390 is an apocalyptic number.

87119390 is a deficient number, since it is larger than the sum of its proper divisors (78920242).

87119390 is a wasteful number, since it uses less digits than its factorization.

87119390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512491.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 87119390 is about 9333.7768347009. The cubic root of 87119390 is about 443.3073602412.

The spelling of 87119390 in words is "eighty-seven million, one hundred nineteen thousand, three hundred ninety".