109858421 has 8 divisors (see below), whose sum is σ = 112559040. Its totient is φ = 107164512.

The previous prime is 109858387. The next prime is 109858447. The reversal of 109858421 is 124858901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109858421 - 2¹⁴ = 109842037 is a prime.

It is a super-2 number, since 2×109858421² = 24137745329226482, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109858121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51545 + ... + 53633.

It is an arithmetic number, because the mean of its divisors is an integer number (14069880).

Almost surely, 2^109858421 is an apocalyptic number.

It is an amenable number.

109858421 is a deficient number, since it is larger than the sum of its proper divisors (2700619).

109858421 is a wasteful number, since it uses less digits than its factorization.

109858421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3355.

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 109858421 is about 10481.3367945124. The cubic root of 109858421 is about 478.9363324708.

The spelling of 109858421 in words is "one hundred nine million, eight hundred fifty-eight thousand, four hundred twenty-one".