859402 has 4 divisors (see below), whose sum is σ = 1289106. Its totient is φ = 429700.

The previous prime is 859393. The next prime is 859423. The reversal of 859402 is 204958.

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., 463761 + 395641 = 681^2 + 629^2 .

It is an Ulam number.

It is a d-powerful number, because it can be written as 8⁶ + 5² + 4⁴ + 9⁶ + 0 + 2¹⁶ .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214849 + ... + 214852.

2⁸⁵⁹⁴⁰² is an apocalyptic number.

859402 is a deficient number, since it is larger than the sum of its proper divisors (429704).

859402 is a wasteful number, since it uses less digits than its factorization.

859402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429703.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 859402 is about 927.0393734896. The cubic root of 859402 is about 95.0748071907.

The spelling of 859402 in words is "eight hundred fifty-nine thousand, four hundred two".