83821354 has 8 divisors (see below), whose sum is σ = 129130308. Its totient is φ = 40777920.

The previous prime is 83821337. The next prime is 83821399. The reversal of 83821354 is 45312838.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 57350329 + 26471025 = 7573^2 + 5145^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566287 + ... + 566434.

Almost surely, 2^83821354 is an apocalyptic number.

83821354 is a deficient number, since it is larger than the sum of its proper divisors (45308954).

83821354 is a wasteful number, since it uses less digits than its factorization.

83821354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132760.

The product of its digits is 23040, while the sum is 34.

The square root of 83821354 is about 9155.4002643249. The cubic root of 83821354 is about 437.6412239594.

The spelling of 83821354 in words is "eighty-three million, eight hundred twenty-one thousand, three hundred fifty-four".