220096391 has 4 divisors (see below), whose sum is σ = 221703072. Its totient is φ = 218489712.

The previous prime is 220096381. The next prime is 220096423. The reversal of 220096391 is 193690022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 193690022 = 2 ⋅96845011.

It is a cyclic number.

It is not a de Polignac number, because 220096391 - 2¹⁰ = 220095367 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 (220096301) 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, 803135 + ... + 803408.

It is an arithmetic number, because the mean of its divisors is an integer number (55425768).

Almost surely, 2^220096391 is an apocalyptic number.

220096391 is a deficient number, since it is larger than the sum of its proper divisors (1606681).

220096391 is a wasteful number, since it uses less digits than its factorization.

220096391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606680.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 220096391 is about 14835.6459582992. The cubic root of 220096391 is about 603.7692265980.

The spelling of 220096391 in words is "two hundred twenty million, ninety-six thousand, three hundred ninety-one".