106764639 has 4 divisors (see below), whose sum is σ = 142352856. Its totient is φ = 71176424.

The previous prime is 106764601. The next prime is 106764653. The reversal of 106764639 is 936467601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 106764639 - 2⁹ = 106764127 is a prime.

It is a super-2 number, since 2×106764639² = 22797376281600642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106764639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106764839) 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, 17794104 + ... + 17794109.

It is an arithmetic number, because the mean of its divisors is an integer number (35588214).

Almost surely, 2^106764639 is an apocalyptic number.

106764639 is a deficient number, since it is larger than the sum of its proper divisors (35588217).

106764639 is an equidigital number, since it uses as much as digits as its factorization.

106764639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35588216.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 106764639 is about 10332.6975664635. The cubic root of 106764639 is about 474.3975949736.

The spelling of 106764639 in words is "one hundred six million, seven hundred sixty-four thousand, six hundred thirty-nine".