105706765 has 8 divisors (see below), whose sum is σ = 134309880. Its totient is φ = 79590912.

The previous prime is 105706763. The next prime is 105706787. The reversal of 105706765 is 567607501.

It can be written as a sum of positive squares in 4 ways, for example, as 808201 + 104898564 = 899^2 + 10242^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105706765 - 2¹ = 105706763 is a prime.

It is a super-2 number, since 2×105706765² = 22347840333530450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105706763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 621720 + ... + 621889.

It is an arithmetic number, because the mean of its divisors is an integer number (16788735).

Almost surely, 2^105706765 is an apocalyptic number.

It is an amenable number.

105706765 is a deficient number, since it is larger than the sum of its proper divisors (28603115).

105706765 is a wasteful number, since it uses less digits than its factorization.

105706765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243631.

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 105706765 is about 10281.3795280595. The cubic root of 105706765 is about 472.8255401494.

The spelling of 105706765 in words is "one hundred five million, seven hundred six thousand, seven hundred sixty-five".