87750007 has 8 divisors (see below), whose sum is σ = 89467056. Its totient is φ = 86048832.

The previous prime is 87750001. The next prime is 87750017. The reversal of 87750007 is 70005778.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87750007 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 (87750001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7513 + ... + 15229.

It is an arithmetic number, because the mean of its divisors is an integer number (11183382).

Almost surely, 2^87750007 is an apocalyptic number.

87750007 is a deficient number, since it is larger than the sum of its proper divisors (1717049).

87750007 is a wasteful number, since it uses less digits than its factorization.

87750007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7937.

The product of its (nonzero) digits is 13720, while the sum is 34.

The square root of 87750007 is about 9367.4973712299. The cubic root of 87750007 is about 444.3744220773.

The spelling of 87750007 in words is "eighty-seven million, seven hundred fifty thousand, seven".