85772270 has 32 divisors (see below), whose sum is σ = 164073600. Its totient is φ = 32191776.

The previous prime is 85772249. The next prime is 85772303. The reversal of 85772270 is 7227758.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18221 + ... + 22439.

It is an arithmetic number, because the mean of its divisors is an integer number (5127300).

Almost surely, 2^85772270 is an apocalyptic number.

85772270 is a deficient number, since it is larger than the sum of its proper divisors (78301330).

85772270 is a wasteful number, since it uses less digits than its factorization.

85772270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4352.

The product of its (nonzero) digits is 54880, while the sum is 38.

The square root of 85772270 is about 9261.3319776369. The cubic root of 85772270 is about 441.0105389096.

The spelling of 85772270 in words is "eighty-five million, seven hundred seventy-two thousand, two hundred seventy".