87804213 has 16 divisors (see below), whose sum is σ = 136066560. Its totient is φ = 49322736.

The previous prime is 87804203. The next prime is 87804217. The reversal of 87804213 is 31240878.

It is not a de Polignac number, because 87804213 - 2²² = 83609909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87804217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34195 + ... + 36672.

It is an arithmetic number, because the mean of its divisors is an integer number (8504160).

Almost surely, 2^87804213 is an apocalyptic number.

It is an amenable number.

87804213 is a deficient number, since it is larger than the sum of its proper divisors (48262347).

87804213 is a wasteful number, since it uses less digits than its factorization.

87804213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70936.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 87804213 is about 9370.3902266661. The cubic root of 87804213 is about 444.4659046976.

The spelling of 87804213 in words is "eighty-seven million, eight hundred four thousand, two hundred thirteen".