100682421 has 16 divisors (see below), whose sum is σ = 154441728. Its totient is φ = 57150000.

The previous prime is 100682401. The next prime is 100682437. The reversal of 100682421 is 124286001.

It is not a de Polignac number, because 100682421 - 2⁶ = 100682357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100682391 and 100682400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100682401) 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, 12705 + ... + 19046.

It is an arithmetic number, because the mean of its divisors is an integer number (9652608).

Almost surely, 2^100682421 is an apocalyptic number.

It is an amenable number.

100682421 is a deficient number, since it is larger than the sum of its proper divisors (53759307).

100682421 is a wasteful number, since it uses less digits than its factorization.

100682421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31912.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 100682421 is about 10034.0630354807. The cubic root of 100682421 is about 465.2123299006.

The spelling of 100682421 in words is "one hundred million, six hundred eighty-two thousand, four hundred twenty-one".