106670989 has 2 divisors, whose sum is σ = 106670990. Its totient is φ = 106670988.

The previous prime is 106670957. The next prime is 106671011. The reversal of 106670989 is 989076601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91202500 + 15468489 = 9550^2 + 3933^2 .

It is a cyclic number.

It is not a de Polignac number, because 106670989 - 2⁵ = 106670957 is a prime.

It is a super-2 number, since 2×106670989² = 22757399788476242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106670909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53335494 + 53335495.

It is an arithmetic number, because the mean of its divisors is an integer number (53335495).

Almost surely, 2^106670989 is an apocalyptic number.

It is an amenable number.

106670989 is a deficient number, since it is larger than the sum of its proper divisors (1).

106670989 is an equidigital number, since it uses as much as digits as its factorization.

106670989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 106670989 is about 10328.1648418294. The cubic root of 106670989 is about 474.2588463782.

The spelling of 106670989 in words is "one hundred six million, six hundred seventy thousand, nine hundred eighty-nine".