106634821 has 8 divisors (see below), whose sum is σ = 112455200. Its totient is φ = 100835280.

The previous prime is 106634819. The next prime is 106634833. The reversal of 106634821 is 128436601.

106634821 = T₃₀₃ + T₃₀₄ + ... + T₈₇₃.

It is a happy number.

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

It is not a de Polignac number, because 106634821 - 2¹ = 106634819 is a prime.

It is a super-2 number, since 2×106634821² = 22741970099404082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106634861) 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, 5935 + ... + 15763.

It is an arithmetic number, because the mean of its divisors is an integer number (14056900).

Almost surely, 2^106634821 is an apocalyptic number.

It is an amenable number.

106634821 is a deficient number, since it is larger than the sum of its proper divisors (5820379).

106634821 is an equidigital number, since it uses as much as digits as its factorization.

106634821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10419.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 106634821 is about 10326.4137530897. The cubic root of 106634821 is about 474.2052393849.

The spelling of 106634821 in words is "one hundred six million, six hundred thirty-four thousand, eight hundred twenty-one".