83664674 has 8 divisors (see below), whose sum is σ = 125576220. Its totient is φ = 41805936.

The previous prime is 83664671. The next prime is 83664677. The reversal of 83664674 is 47646638.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (83664671) and next prime (83664677).

It can be written as a sum of positive squares in 2 ways, for example, as 83594449 + 70225 = 9143^2 + 265^2 .

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 (83664671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8969 + ... + 15740.

Almost surely, 2^83664674 is an apocalyptic number.

83664674 is a deficient number, since it is larger than the sum of its proper divisors (41911546).

83664674 is a wasteful number, since it uses less digits than its factorization.

83664674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26404.

The product of its digits is 580608, while the sum is 44.

The square root of 83664674 is about 9146.8395634776. The cubic root of 83664674 is about 437.3683722660.

The spelling of 83664674 in words is "eighty-three million, six hundred sixty-four thousand, six hundred seventy-four".