100071620 has 48 divisors (see below), whose sum is σ = 239234688. Its totient is φ = 34805760.

The previous prime is 100071599. The next prime is 100071623. The reversal of 100071620 is 26170001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (100071623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4829 + ... + 14948.

It is an arithmetic number, because the mean of its divisors is an integer number (4984056).

Almost surely, 2^100071620 is an apocalyptic number.

100071620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100071620 is an abundant number, since it is smaller than the sum of its proper divisors (139163068).

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

100071620 is a wasteful number, since it uses less digits than its factorization.

100071620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19820 (or 19818 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 100071620 is about 10003.5803590515. The cubic root of 100071620 is about 464.2696671151.

The spelling of 100071620 in words is "one hundred million, seventy-one thousand, six hundred twenty".