866772352 has 32 divisors (see below), whose sum is σ = 1729389600. Its totient is φ = 432729600.

The previous prime is 866772317. The next prime is 866772383. The reversal of 866772352 is 253277668.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×866772352² = 1502588620383223808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85977 + ... + 95527.

It is an arithmetic number, because the mean of its divisors is an integer number (54043425).

Almost surely, 2^866772352 is an apocalyptic number.

It is an amenable number.

866772352 is a deficient number, since it is larger than the sum of its proper divisors (862617248).

866772352 is an equidigital number, since it uses as much as digits as its factorization.

866772352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10274 (or 10262 counting only the distinct ones).

The product of its digits is 846720, while the sum is 46.

The square root of 866772352 is about 29440.9978091776. The cubic root of 866772352 is about 953.4582552107.

The spelling of 866772352 in words is "eight hundred sixty-six million, seven hundred seventy-two thousand, three hundred fifty-two".