87840430 has 16 divisors (see below), whose sum is σ = 158261040. Its totient is φ = 35103232.

The previous prime is 87840373. The next prime is 87840461. The reversal of 87840430 is 3404878.

It is a super-3 number, since 3×87840430³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9102 + ... + 16078.

It is an arithmetic number, because the mean of its divisors is an integer number (9891315).

Almost surely, 2^87840430 is an apocalyptic number.

87840430 is a deficient number, since it is larger than the sum of its proper divisors (70420610).

87840430 is a wasteful number, since it uses less digits than its factorization.

87840430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8243.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 87840430 is about 9372.3225510009. The cubic root of 87840430 is about 444.5270065832.

The spelling of 87840430 in words is "eighty-seven million, eight hundred forty thousand, four hundred thirty".