87402838 has 8 divisors (see below), whose sum is σ = 131227488. Its totient is φ = 43660344.

The previous prime is 87402817. The next prime is 87402841. The reversal of 87402838 is 83820478.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 87402838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17806 + ... + 22177.

It is an arithmetic number, because the mean of its divisors is an integer number (16403436).

Almost surely, 2^87402838 is an apocalyptic number.

87402838 is a deficient number, since it is larger than the sum of its proper divisors (43824650).

87402838 is a wasteful number, since it uses less digits than its factorization.

87402838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41078.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 87402838 is about 9348.9484970236. The cubic root of 87402838 is about 443.7876151940.

The spelling of 87402838 in words is "eighty-seven million, four hundred two thousand, eight hundred thirty-eight".