106865777 has 4 divisors (see below), whose sum is σ = 107923956. Its totient is φ = 105807600.

The previous prime is 106865761. The next prime is 106865807. The reversal of 106865777 is 777568601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 777568601 = 27817 ⋅27953.

It can be written as a sum of positive squares in 2 ways, for example, as 70492816 + 36372961 = 8396^2 + 6031^2 .

It is not a de Polignac number, because 106865777 - 2⁴ = 106865761 is a prime.

It is a super-2 number, since 2×106865777² = 22840588587627458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106865677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528938 + ... + 529139.

It is an arithmetic number, because the mean of its divisors is an integer number (26980989).

Almost surely, 2^106865777 is an apocalyptic number.

It is an amenable number.

106865777 is a deficient number, since it is larger than the sum of its proper divisors (1058179).

106865777 is a wasteful number, since it uses less digits than its factorization.

106865777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058178.

The product of its (nonzero) digits is 493920, while the sum is 47.

The square root of 106865777 is about 10337.5904832799. The cubic root of 106865777 is about 474.5473464333.

The spelling of 106865777 in words is "one hundred six million, eight hundred sixty-five thousand, seven hundred seventy-seven".