85772123 has 8 divisors (see below), whose sum is σ = 93033360. Its totient is φ = 78757120.

The previous prime is 85772107. The next prime is 85772131. The reversal of 85772123 is 32127758.

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 85772123 - 2⁴ = 85772107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85772173) 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, 60833 + ... + 62226.

It is an arithmetic number, because the mean of its divisors is an integer number (11629170).

Almost surely, 2^85772123 is an apocalyptic number.

85772123 is a deficient number, since it is larger than the sum of its proper divisors (7261237).

85772123 is a wasteful number, since it uses less digits than its factorization.

85772123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123117.

The product of its digits is 23520, while the sum is 35.

The square root of 85772123 is about 9261.3240414101. The cubic root of 85772123 is about 441.0102869689.

The spelling of 85772123 in words is "eighty-five million, seven hundred seventy-two thousand, one hundred twenty-three".