87404874827 has 4 divisors (see below), whose sum is σ = 91205086800. Its totient is φ = 83604662856.

The previous prime is 87404874797. The next prime is 87404874839. The reversal of 87404874827 is 72847840478.

It is a happy number.

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 87404874827 - 2¹² = 87404870731 is a prime.

It is a super-2 number, since 2×87404874827² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87404874877) 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, 1900105952 + ... + 1900105997.

It is an arithmetic number, because the mean of its divisors is an integer number (22801271700).

Almost surely, 2^87404874827 is an apocalyptic number.

87404874827 is a deficient number, since it is larger than the sum of its proper divisors (3800211973).

87404874827 is a wasteful number, since it uses less digits than its factorization.

87404874827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3800211972.

The product of its (nonzero) digits is 22478848, while the sum is 59.

The spelling of 87404874827 in words is "eighty-seven billion, four hundred four million, eight hundred seventy-four thousand, eight hundred twenty-seven".