105620872 has 24 divisors (see below), whose sum is σ = 230372910. Its totient is φ = 45265920.

The previous prime is 105620869. The next prime is 105620873. The reversal of 105620872 is 278026501.

It can be written as a sum of positive squares in only one way, i.e., 90364036 + 15256836 = 9506^2 + 3906^2 .

It is a super-2 number, since 2×105620872² = 22311537204080768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105620873) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 134329 + ... + 135112.

Almost surely, 2^105620872 is an apocalyptic number.

It is an amenable number.

105620872 is an abundant number, since it is smaller than the sum of its proper divisors (124752038).

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

105620872 is a wasteful number, since it uses less digits than its factorization.

105620872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269461 (or 269450 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 105620872 is about 10277.2015646284. The cubic root of 105620872 is about 472.6974392057.

The spelling of 105620872 in words is "one hundred five million, six hundred twenty thousand, eight hundred seventy-two".