106435649 has 4 divisors (see below), whose sum is σ = 106511664. Its totient is φ = 106359636.

The previous prime is 106435639. The next prime is 106435687. The reversal of 106435649 is 946534601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 946534601 = 653 ⋅1449517.

It is a cyclic number.

It is not a de Polignac number, because 106435649 - 2⁴ = 106435633 is a prime.

It is a super-2 number, since 2×106435649² = 22657094756102402, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (106435619) 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, 35867 + ... + 38720.

It is an arithmetic number, because the mean of its divisors is an integer number (26627916).

Almost surely, 2^106435649 is an apocalyptic number.

It is an amenable number.

106435649 is a deficient number, since it is larger than the sum of its proper divisors (76015).

106435649 is an equidigital number, since it uses as much as digits as its factorization.

106435649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76014.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 106435649 is about 10316.7654330221. The cubic root of 106435649 is about 473.9098159652.

The spelling of 106435649 in words is "one hundred six million, four hundred thirty-five thousand, six hundred forty-nine".