86212402 has 4 divisors (see below), whose sum is σ = 129318606. Its totient is φ = 43106200.

The previous prime is 86212391. The next prime is 86212409. The reversal of 86212402 is 20421268.

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., 80263681 + 5948721 = 8959^2 + 2439^2 .

It is not an unprimeable number, because it can be changed into a prime (86212409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21553099 + ... + 21553102.

Almost surely, 2^86212402 is an apocalyptic number.

86212402 is a deficient number, since it is larger than the sum of its proper divisors (43106204).

86212402 is a wasteful number, since it uses less digits than its factorization.

86212402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43106203.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 86212402 is about 9285.0633815823. The cubic root of 86212402 is about 441.7635864357.

The spelling of 86212402 in words is "eighty-six million, two hundred twelve thousand, four hundred two".