87847413 has 4 divisors (see below), whose sum is σ = 117129888. Its totient is φ = 58564940.

The previous prime is 87847399. The next prime is 87847429. The reversal of 87847413 is 31474878.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87847413 - 2⁶ = 87847349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87847433) 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, 14641233 + ... + 14641238.

It is an arithmetic number, because the mean of its divisors is an integer number (29282472).

Almost surely, 2^87847413 is an apocalyptic number.

It is an amenable number.

87847413 is a deficient number, since it is larger than the sum of its proper divisors (29282475).

87847413 is a wasteful number, since it uses less digits than its factorization.

87847413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29282474.

The product of its digits is 150528, while the sum is 42.

The square root of 87847413 is about 9372.6950766575. The cubic root of 87847413 is about 444.5387857068.

The spelling of 87847413 in words is "eighty-seven million, eight hundred forty-seven thousand, four hundred thirteen".