108487421 has 36 divisors (see below), whose sum is σ = 137752128. Its totient is φ = 85131648.

The previous prime is 108487403. The next prime is 108487429. The reversal of 108487421 is 124784801.

It is not a de Polignac number, because 108487421 - 2¹⁴ = 108471037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108487429) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 665486 + ... + 665648.

It is an arithmetic number, because the mean of its divisors is an integer number (3826448).

Almost surely, 2^108487421 is an apocalyptic number.

It is an amenable number.

108487421 is a deficient number, since it is larger than the sum of its proper divisors (29264707).

108487421 is a wasteful number, since it uses less digits than its factorization.

108487421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 108487421 is about 10415.7294991758. The cubic root of 108487421 is about 476.9356595956.

The spelling of 108487421 in words is "one hundred eight million, four hundred eighty-seven thousand, four hundred twenty-one".