85907642 has 8 divisors (see below), whose sum is σ = 130974132. Its totient is φ = 42249600.

The previous prime is 85907629. The next prime is 85907651. The reversal of 85907642 is 24670958.

It can be written as a sum of positive squares in 2 ways, for example, as 69739201 + 16168441 = 8351^2 + 4021^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 85907642.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351959 + ... + 352202.

Almost surely, 2^85907642 is an apocalyptic number.

85907642 is a deficient number, since it is larger than the sum of its proper divisors (45066490).

85907642 is a wasteful number, since it uses less digits than its factorization.

85907642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704224.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 85907642 is about 9268.6375482052. The cubic root of 85907642 is about 441.2424285336.

The spelling of 85907642 in words is "eighty-five million, nine hundred seven thousand, six hundred forty-two".