86438402 has 8 divisors (see below), whose sum is σ = 131114700. Its totient is φ = 42733504.

The previous prime is 86438399. The next prime is 86438419. The reversal of 86438402 is 20483468.

It can be written as a sum of positive squares in 2 ways, for example, as 86285521 + 152881 = 9289^2 + 391^2 .

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

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 in 3 ways as a sum of consecutive naturals, for example, 242627 + ... + 242982.

Almost surely, 2^86438402 is an apocalyptic number.

86438402 is a deficient number, since it is larger than the sum of its proper divisors (44676298).

86438402 is a wasteful number, since it uses less digits than its factorization.

86438402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485700.

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 86438402 is about 9297.2255001156. The cubic root of 86438402 is about 442.1492674399.

The spelling of 86438402 in words is "eighty-six million, four hundred thirty-eight thousand, four hundred two".