83209274 has 4 divisors (see below), whose sum is σ = 124813914. Its totient is φ = 41604636.

The previous prime is 83209249. The next prime is 83209277. The reversal of 83209274 is 47290238.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47290238 = 2 ⋅23645119.

It can be written as a sum of positive squares in only one way, i.e., 74943649 + 8265625 = 8657^2 + 2875^2 .

It is not an unprimeable number, because it can be changed into a prime (83209277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20802317 + ... + 20802320.

Almost surely, 2^83209274 is an apocalyptic number.

83209274 is a deficient number, since it is larger than the sum of its proper divisors (41604640).

83209274 is a wasteful number, since it uses less digits than its factorization.

83209274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41604639.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 83209274 is about 9121.9117513819. The cubic root of 83209274 is about 436.5733730987.

The spelling of 83209274 in words is "eighty-three million, two hundred nine thousand, two hundred seventy-four".