85229961 has 16 divisors (see below), whose sum is σ = 116182080. Its totient is φ = 55563200.

The previous prime is 85229951. The next prime is 85229983. The reversal of 85229961 is 16992258.

It is a cyclic number.

It is not a de Polignac number, because 85229961 - 2⁶ = 85229897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85229951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23455 + ... + 26843.

It is an arithmetic number, because the mean of its divisors is an integer number (7261380).

Almost surely, 2^85229961 is an apocalyptic number.

It is an amenable number.

85229961 is a deficient number, since it is larger than the sum of its proper divisors (30952119).

85229961 is a wasteful number, since it uses less digits than its factorization.

85229961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3576.

The product of its digits is 77760, while the sum is 42.

The square root of 85229961 is about 9232.0074198410. The cubic root of 85229961 is about 440.0791197252.

The spelling of 85229961 in words is "eighty-five million, two hundred twenty-nine thousand, nine hundred sixty-one".