87822467 has 4 divisors (see below), whose sum is σ = 88307856. Its totient is φ = 87337080.

The previous prime is 87822463. The next prime is 87822509. The reversal of 87822467 is 76422878.

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 87822467 - 2² = 87822463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87822463) 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, 242423 + ... + 242784.

It is an arithmetic number, because the mean of its divisors is an integer number (22076964).

Almost surely, 2^87822467 is an apocalyptic number.

87822467 is a deficient number, since it is larger than the sum of its proper divisors (485389).

87822467 is a wasteful number, since it uses less digits than its factorization.

87822467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485388.

The product of its digits is 301056, while the sum is 44.

The square root of 87822467 is about 9371.3642016518. The cubic root of 87822467 is about 444.4967032139.

The spelling of 87822467 in words is "eighty-seven million, eight hundred twenty-two thousand, four hundred sixty-seven".