772101223 has 4 divisors (see below), whose sum is σ = 817518960. Its totient is φ = 726683488.

The previous prime is 772101179. The next prime is 772101227. The reversal of 772101223 is 322101277.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 772101223 - 2¹⁷ = 771970151 is a prime.

It is a super-2 number, since 2×772101223² = 1192280597116191458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772101227) 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, 22708843 + ... + 22708876.

It is an arithmetic number, because the mean of its divisors is an integer number (204379740).

Almost surely, 2^772101223 is an apocalyptic number.

772101223 is a deficient number, since it is larger than the sum of its proper divisors (45417737).

772101223 is a wasteful number, since it uses less digits than its factorization.

772101223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45417736.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 772101223 is about 27786.7094669376. The cubic root of 772101223 is about 917.3986149657.

The spelling of 772101223 in words is "seven hundred seventy-two million, one hundred one thousand, two hundred twenty-three".