83664867 has 16 divisors (see below), whose sum is σ = 131056128. Its totient is φ = 46805280.

The previous prime is 83664857. The next prime is 83664901. The reversal of 83664867 is 76846638.

It is a happy number.

It is not a de Polignac number, because 83664867 - 2⁴ = 83664851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83664817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97083 + ... + 97940.

It is an arithmetic number, because the mean of its divisors is an integer number (8191008).

Almost surely, 2^83664867 is an apocalyptic number.

83664867 is a deficient number, since it is larger than the sum of its proper divisors (47391261).

83664867 is a wasteful number, since it uses less digits than its factorization.

83664867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195050.

The product of its digits is 1161216, while the sum is 48.

The square root of 83664867 is about 9146.8501135637. The cubic root of 83664867 is about 437.3687085769.

It can be divided in two parts, 836 and 64867, that added together give a triangular number (65703 = T₃₆₂).

The spelling of 83664867 in words is "eighty-three million, six hundred sixty-four thousand, eight hundred sixty-seven".