84320402 has 8 divisors (see below), whose sum is σ = 128213436. Its totient is φ = 41582592.

The previous prime is 84320399. The next prime is 84320407. The reversal of 84320402 is 20402348.

It can be written as a sum of positive squares in 2 ways, for example, as 83156161 + 1164241 = 9119^2 + 1079^2 .

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

It is not an unprimeable number, because it can be changed into a prime (84320407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288623 + ... + 288914.

Almost surely, 2^84320402 is an apocalyptic number.

84320402 is a deficient number, since it is larger than the sum of its proper divisors (43893034).

84320402 is a wasteful number, since it uses less digits than its factorization.

84320402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577612.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 84320402 is about 9182.6141158169. The cubic root of 84320402 is about 438.5080355659.

The spelling of 84320402 in words is "eighty-four million, three hundred twenty thousand, four hundred two".