85670402 has 8 divisors (see below), whose sum is σ = 131640012. Its totient is φ = 41790400.

The previous prime is 85670401. The next prime is 85670471. The reversal of 85670402 is 20407658.

It can be written as a sum of positive squares in 2 ways, for example, as 85581001 + 89401 = 9251^2 + 299^2 .

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 (85670401) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 522299 + ... + 522462.

Almost surely, 2^85670402 is an apocalyptic number.

85670402 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

85670402 is a deficient number, since it is larger than the sum of its proper divisors (45969610).

85670402 is a wasteful number, since it uses less digits than its factorization.

85670402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044804.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 85670402 is about 9255.8307028597. The cubic root of 85670402 is about 440.8358800585.

The spelling of 85670402 in words is "eighty-five million, six hundred seventy thousand, four hundred two".