106721070 has 32 divisors (see below), whose sum is σ = 271198368. Its totient is φ = 26784768.

The previous prime is 106721063. The next prime is 106721093. The reversal of 106721070 is 70127601.

It is a super-2 number, since 2×106721070² = 22778773563889800, 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 106721070.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104119 + ... + 105138.

It is an arithmetic number, because the mean of its divisors is an integer number (8474949).

Almost surely, 2^106721070 is an apocalyptic number.

106721070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

106721070 is an abundant number, since it is smaller than the sum of its proper divisors (164477298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

106721070 is a wasteful number, since it uses less digits than its factorization.

106721070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209284.

The product of its (nonzero) digits is 588, while the sum is 24.

The square root of 106721070 is about 10330.5890441930. The cubic root of 106721070 is about 474.3330547500. Note that the first 3 decimals are identical.

Adding to 106721070 its reverse (70127601), we get a palindrome (176848671).

The spelling of 106721070 in words is "one hundred six million, seven hundred twenty-one thousand, seventy".