85147732 has 6 divisors (see below), whose sum is σ = 149008538. Its totient is φ = 42573864.

The previous prime is 85147729. The next prime is 85147739. The reversal of 85147732 is 23774158.

It can be written as a sum of positive squares in only one way, i.e., 72658576 + 12489156 = 8524^2 + 3534^2 .

It is a junction number, because it is equal to n+sod(n) for n = 85147691 and 85147700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85147739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10643463 + ... + 10643470.

Almost surely, 2^85147732 is an apocalyptic number.

It is an amenable number.

85147732 is a deficient number, since it is larger than the sum of its proper divisors (63860806).

85147732 is a wasteful number, since it uses less digits than its factorization.

85147732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21286937 (or 21286935 counting only the distinct ones).

The product of its digits is 47040, while the sum is 37.

The square root of 85147732 is about 9227.5528716990. The cubic root of 85147732 is about 439.9375462321.

The spelling of 85147732 in words is "eighty-five million, one hundred forty-seven thousand, seven hundred thirty-two".