772222231 has 8 divisors (see below), whose sum is σ = 846419328. Its totient is φ = 698691000.

The previous prime is 772222219. The next prime is 772222247. The reversal of 772222231 is 132222277.

772222231 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 772222231 - 2¹³ = 772214039 is a prime.

It is a super-2 number, since 2×772222231² = 1192654348101234722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 772222231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772222211) 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, 164035 + ... + 168676.

It is an arithmetic number, because the mean of its divisors is an integer number (105802416).

Almost surely, 2^772222231 is an apocalyptic number.

772222231 is a deficient number, since it is larger than the sum of its proper divisors (74197097).

772222231 is a wasteful number, since it uses less digits than its factorization.

772222231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332933.

The product of its digits is 4704, while the sum is 28.

The square root of 772222231 is about 27788.8868254919. The cubic root of 772222231 is about 917.4465390674.

The spelling of 772222231 in words is "seven hundred seventy-two million, two hundred twenty-two thousand, two hundred thirty-one".