87323797 has 4 divisors (see below), whose sum is σ = 95262336. Its totient is φ = 79385260.

The previous prime is 87323783. The next prime is 87323837. The reversal of 87323797 is 79732378.

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 87323797 - 2¹⁹ = 86799509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87320797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3969253 + ... + 3969274.

It is an arithmetic number, because the mean of its divisors is an integer number (23815584).

Almost surely, 2^87323797 is an apocalyptic number.

It is an amenable number.

87323797 is a deficient number, since it is larger than the sum of its proper divisors (7938539).

87323797 is a wasteful number, since it uses less digits than its factorization.

87323797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7938538.

The product of its digits is 444528, while the sum is 46.

The square root of 87323797 is about 9344.7202740371. The cubic root of 87323797 is about 443.6537980439.

The spelling of 87323797 in words is "eighty-seven million, three hundred twenty-three thousand, seven hundred ninety-seven".