87397840307 has 4 divisors (see below), whose sum is σ = 87431548200. Its totient is φ = 87364132416.

The previous prime is 87397840303. The next prime is 87397840331. The reversal of 87397840307 is 70304879378.

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 87397840307 - 2² = 87397840303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87397840303) 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, 16850057 + ... + 16855242.

It is an arithmetic number, because the mean of its divisors is an integer number (21857887050).

Almost surely, 2^87397840307 is an apocalyptic number.

87397840307 is a deficient number, since it is larger than the sum of its proper divisors (33707893).

87397840307 is a wasteful number, since it uses less digits than its factorization.

87397840307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33707892.

The product of its (nonzero) digits is 7112448, while the sum is 56.

The spelling of 87397840307 in words is "eighty-seven billion, three hundred ninety-seven million, eight hundred forty thousand, three hundred seven".