87946413 has 4 divisors (see below), whose sum is σ = 117261888. Its totient is φ = 58630940.

The previous prime is 87946399. The next prime is 87946429. The reversal of 87946413 is 31464978.

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 87946413 - 2⁹ = 87945901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87946013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14657733 + ... + 14657738.

It is an arithmetic number, because the mean of its divisors is an integer number (29315472).

Almost surely, 2^87946413 is an apocalyptic number.

It is an amenable number.

87946413 is a deficient number, since it is larger than the sum of its proper divisors (29315475).

87946413 is a wasteful number, since it uses less digits than its factorization.

87946413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29315474.

The product of its digits is 145152, while the sum is 42.

The square root of 87946413 is about 9377.9748880022. The cubic root of 87946413 is about 444.7057146140.

The spelling of 87946413 in words is "eighty-seven million, nine hundred forty-six thousand, four hundred thirteen".