87910345 has 4 divisors (see below), whose sum is σ = 105492420. Its totient is φ = 70328272.

The previous prime is 87910343. The next prime is 87910367. The reversal of 87910345 is 54301978.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23011209 + 64899136 = 4797^2 + 8056^2 .

It is a cyclic number.

It is not a de Polignac number, because 87910345 - 2¹ = 87910343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87910343) 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, 8791030 + ... + 8791039.

It is an arithmetic number, because the mean of its divisors is an integer number (26373105).

Almost surely, 2^87910345 is an apocalyptic number.

It is an amenable number.

87910345 is a deficient number, since it is larger than the sum of its proper divisors (17582075).

87910345 is a wasteful number, since it uses less digits than its factorization.

87910345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17582074.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 87910345 is about 9376.0516743457. The cubic root of 87910345 is about 444.6449130480.

The spelling of 87910345 in words is "eighty-seven million, nine hundred ten thousand, three hundred forty-five".