220694761 has 8 divisors (see below), whose sum is σ = 252854784. Its totient is φ = 188692800.

The previous prime is 220694753. The next prime is 220694779. The reversal of 220694761 is 167496022.

220694761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 220694761 - 2³ = 220694753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220694761.

It is not an unprimeable number, because it can be changed into a prime (220694741) 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, 36505 + ... + 42118.

It is an arithmetic number, because the mean of its divisors is an integer number (31606848).

Almost surely, 2^220694761 is an apocalyptic number.

It is an amenable number.

220694761 is a deficient number, since it is larger than the sum of its proper divisors (32160023).

220694761 is an equidigital number, since it uses as much as digits as its factorization.

220694761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79031.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 220694761 is about 14855.7989014391. The cubic root of 220694761 is about 604.3158817639.

The spelling of 220694761 in words is "two hundred twenty million, six hundred ninety-four thousand, seven hundred sixty-one".