7120087 has 8 divisors (see below), whose sum is σ = 8001504. Its totient is φ = 6286368.

The previous prime is 7120063. The next prime is 7120097. The reversal of 7120087 is 7800217.

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-7120087 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 (7120007) 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 7 ways as a sum of consecutive naturals, for example, 11608 + ... + 12205.

It is an arithmetic number, because the mean of its divisors is an integer number (1000188).

Almost surely, 2^7120087 is an apocalyptic number.

7120087 is a deficient number, since it is larger than the sum of its proper divisors (881417).

7120087 is a wasteful number, since it uses less digits than its factorization.

7120087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23849.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 7120087 is about 2668.3491150897. The cubic root of 7120087 is about 192.3808178887.

The spelling of 7120087 in words is "seven million, one hundred twenty thousand, eighty-seven".