87838051 has 4 divisors (see below), whose sum is σ = 100386352. Its totient is φ = 75289752.

The previous prime is 87838043. The next prime is 87838057. The reversal of 87838051 is 15083878.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87838051 - 2³ = 87838043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87837995 and 87838013.

It is not an unprimeable number, because it can be changed into a prime (87838057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6274140 + ... + 6274153.

It is an arithmetic number, because the mean of its divisors is an integer number (25096588).

Almost surely, 2^87838051 is an apocalyptic number.

87838051 is a deficient number, since it is larger than the sum of its proper divisors (12548301).

87838051 is a wasteful number, since it uses less digits than its factorization.

87838051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12548300.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 87838051 is about 9372.1956338950. The cubic root of 87838051 is about 444.5229934756.

The spelling of 87838051 in words is "eighty-seven million, eight hundred thirty-eight thousand, fifty-one".