85381652 has 6 divisors (see below), whose sum is σ = 149417898. Its totient is φ = 42690824.

The previous prime is 85381643. The next prime is 85381661. The reversal of 85381652 is 25618358.

It is an interprime number because it is at equal distance from previous prime (85381643) and next prime (85381661).

It can be written as a sum of positive squares in only one way, i.e., 72522256 + 12859396 = 8516^2 + 3586^2 .

It is a congruent number.

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, 10672703 + ... + 10672710.

It is an arithmetic number, because the mean of its divisors is an integer number (24902983).

Almost surely, 2^85381652 is an apocalyptic number.

It is an amenable number.

85381652 is a deficient number, since it is larger than the sum of its proper divisors (64036246).

85381652 is a wasteful number, since it uses less digits than its factorization.

85381652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21345417 (or 21345415 counting only the distinct ones).

The product of its digits is 57600, while the sum is 38.

The square root of 85381652 is about 9240.2192614678. The cubic root of 85381652 is about 440.3400470497.

The spelling of 85381652 in words is "eighty-five million, three hundred eighty-one thousand, six hundred fifty-two".