109773421 has 4 divisors (see below), whose sum is σ = 109857472. Its totient is φ = 109689372.

The previous prime is 109773409. The next prime is 109773463. The reversal of 109773421 is 124377901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 109773421 - 2¹⁷ = 109642349 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 (109771421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40035 + ... + 42688.

It is an arithmetic number, because the mean of its divisors is an integer number (27464368).

Almost surely, 2^109773421 is an apocalyptic number.

It is an amenable number.

109773421 is a deficient number, since it is larger than the sum of its proper divisors (84051).

109773421 is an equidigital number, since it uses as much as digits as its factorization.

109773421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84050.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 109773421 is about 10477.2811835896. The cubic root of 109773421 is about 478.8127792292.

The spelling of 109773421 in words is "one hundred nine million, seven hundred seventy-three thousand, four hundred twenty-one".