83678201 has 4 divisors (see below), whose sum is σ = 85939812. Its totient is φ = 81416592.

The previous prime is 83678191. The next prime is 83678239. The reversal of 83678201 is 10287638.

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

It can be written as a sum of positive squares in 2 ways, for example, as 59274601 + 24403600 = 7699^2 + 4940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83678201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (83678281) 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, 1130750 + ... + 1130823.

It is an arithmetic number, because the mean of its divisors is an integer number (21484953).

Almost surely, 2^83678201 is an apocalyptic number.

It is an amenable number.

83678201 is a deficient number, since it is larger than the sum of its proper divisors (2261611).

83678201 is a wasteful number, since it uses less digits than its factorization.

83678201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261610.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 83678201 is about 9147.5789693230. The cubic root of 83678201 is about 437.3919424016.

The spelling of 83678201 in words is "eighty-three million, six hundred seventy-eight thousand, two hundred one".