85402 has 4 divisors (see below), whose sum is σ = 128106. Its totient is φ = 42700.

The previous prime is 85381. The next prime is 85411. The reversal of 85402 is 20458.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 53361 + 32041 = 231^2 + 179^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 85402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21349 + ... + 21352.

2⁸⁵⁴⁰² is an apocalyptic number.

85402 is a deficient number, since it is larger than the sum of its proper divisors (42704).

85402 is a wasteful number, since it uses less digits than its factorization.

85402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42703.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 85402 is about 292.2362058336. The cubic root of 85402 is about 44.0375024618.

The spelling of 85402 in words is "eighty-five thousand, four hundred two".