83674321 has 4 divisors (see below), whose sum is σ = 84456432. Its totient is φ = 82892212.

The previous prime is 83674319. The next prime is 83674373. The reversal of 83674321 is 12347638.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83674321 - 2¹ = 83674319 is a prime.

It is a super-2 number, since 2×83674321² = 14002783989622082, which contains 22 as substring.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83674021) 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, 390895 + ... + 391108.

It is an arithmetic number, because the mean of its divisors is an integer number (21114108).

Almost surely, 2^83674321 is an apocalyptic number.

It is an amenable number.

83674321 is a deficient number, since it is larger than the sum of its proper divisors (782111).

83674321 is a wasteful number, since it uses less digits than its factorization.

83674321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782110.

The product of its digits is 24192, while the sum is 34.

The square root of 83674321 is about 9147.3668888921. The cubic root of 83674321 is about 437.3851819513.

It can be divided in two parts, 836 and 74321, that added together give a palindrome (75157).

The spelling of 83674321 in words is "eighty-three million, six hundred seventy-four thousand, three hundred twenty-one".