85224772 has 6 divisors (see below), whose sum is σ = 149143358. Its totient is φ = 42612384.

The previous prime is 85224767. The next prime is 85224793. The reversal of 85224772 is 27742258.

It can be written as a sum of positive squares in only one way, i.e., 83466496 + 1758276 = 9136^2 + 1326^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10653093 + ... + 10653100.

Almost surely, 2^85224772 is an apocalyptic number.

It is an amenable number.

85224772 is a deficient number, since it is larger than the sum of its proper divisors (63918586).

85224772 is a wasteful number, since it uses less digits than its factorization.

85224772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21306197 (or 21306195 counting only the distinct ones).

The product of its digits is 62720, while the sum is 37.

The square root of 85224772 is about 9231.7263824271. The cubic root of 85224772 is about 440.0701885275.

The spelling of 85224772 in words is "eighty-five million, two hundred twenty-four thousand, seven hundred seventy-two".