83674561 has 8 divisors (see below), whose sum is σ = 89475624. Its totient is φ = 77971200.

The previous prime is 83674559. The next prime is 83674573. The reversal of 83674561 is 16547638.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 56175025 + 27499536 = 7495^2 + 5244^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83674561 - 2¹ = 83674559 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (83678561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22650 + ... + 26083.

It is an arithmetic number, because the mean of its divisors is an integer number (11184453).

Almost surely, 2^83674561 is an apocalyptic number.

It is an amenable number.

83674561 is a deficient number, since it is larger than the sum of its proper divisors (5801063).

83674561 is a wasteful number, since it uses less digits than its factorization.

83674561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48851.

The product of its digits is 120960, while the sum is 40.

The square root of 83674561 is about 9147.3800074120. The cubic root of 83674561 is about 437.3856001295.

The spelling of 83674561 in words is "eighty-three million, six hundred seventy-four thousand, five hundred sixty-one".