7120987 has 2 divisors, whose sum is σ = 7120988. Its totient is φ = 7120986.

The previous prime is 7120969. The next prime is 7120999. The reversal of 7120987 is 7890217.

It is a strong prime.

It is an emirp because it is prime and its reverse (7890217) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7120987 is a prime.

It is not a weakly prime, because it can be changed into another prime (7120907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3560493 + 3560494.

It is an arithmetic number, because the mean of its divisors is an integer number (3560494).

Almost surely, 2^7120987 is an apocalyptic number.

7120987 is a deficient number, since it is larger than the sum of its proper divisors (1).

7120987 is an equidigital number, since it uses as much as digits as its factorization.

7120987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 7120987 is about 2668.5177533605. The cubic root of 7120987 is about 192.3889233815.

The spelling of 7120987 in words is "seven million, one hundred twenty thousand, nine hundred eighty-seven".