106870987 has 2 divisors, whose sum is σ = 106870988. Its totient is φ = 106870986.

The previous prime is 106870961. The next prime is 106871021. The reversal of 106870987 is 789078601.

It is a weak prime.

It is an emirp because it is prime and its reverse (789078601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 106870987 - 2⁷ = 106870859 is a prime.

It is a super-2 number, since 2×106870987² = 22842815724708338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (106870927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53435493 + 53435494.

It is an arithmetic number, because the mean of its divisors is an integer number (53435494).

Almost surely, 2^106870987 is an apocalyptic number.

106870987 is a deficient number, since it is larger than the sum of its proper divisors (1).

106870987 is an equidigital number, since it uses as much as digits as its factorization.

106870987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 46.

The square root of 106870987 is about 10337.8424731662. The cubic root of 106870987 is about 474.5550581366. Note that the first 3 decimals are identical.

The spelling of 106870987 in words is "one hundred six million, eight hundred seventy thousand, nine hundred eighty-seven".