83664902 has 4 divisors (see below), whose sum is σ = 125497356. Its totient is φ = 41832450.

The previous prime is 83664901. The next prime is 83664907. The reversal of 83664902 is 20946638.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83664901) 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 as a sum of consecutive naturals, namely, 20916224 + ... + 20916227.

It is an arithmetic number, because the mean of its divisors is an integer number (31374339).

Almost surely, 2^83664902 is an apocalyptic number.

83664902 is a deficient number, since it is larger than the sum of its proper divisors (41832454).

83664902 is a wasteful number, since it uses less digits than its factorization.

83664902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41832453.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 83664902 is about 9146.8520267904. The cubic root of 83664902 is about 437.3687695658.

The spelling of 83664902 in words is "eighty-three million, six hundred sixty-four thousand, nine hundred two".