7670987 has 2 divisors, whose sum is σ = 7670988. Its totient is φ = 7670986.

The previous prime is 7670969. The next prime is 7670989. The reversal of 7670987 is 7890767.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7670987 is a prime.

It is a super-3 number, since 3×7670987³ (a number of 22 digits) contains 333 as substring.

Together with 7670989, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (7670989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3835493 + 3835494.

It is an arithmetic number, because the mean of its divisors is an integer number (3835494).

Almost surely, 2^7670987 is an apocalyptic number.

7670987 is a deficient number, since it is larger than the sum of its proper divisors (1).

7670987 is an equidigital number, since it uses as much as digits as its factorization.

7670987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176, while the sum is 44.

The square root of 7670987 is about 2769.6546716152. The cubic root of 7670987 is about 197.2197552852.

The spelling of 7670987 in words is "seven million, six hundred seventy thousand, nine hundred eighty-seven".