83081774 has 4 divisors (see below), whose sum is σ = 124622664. Its totient is φ = 41540886.

The previous prime is 83081741. The next prime is 83081777. The reversal of 83081774 is 47718038.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83081777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20770442 + ... + 20770445.

It is an arithmetic number, because the mean of its divisors is an integer number (31155666).

Almost surely, 2^83081774 is an apocalyptic number.

83081774 is a deficient number, since it is larger than the sum of its proper divisors (41540890).

83081774 is a wasteful number, since it uses less digits than its factorization.

83081774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41540889.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 83081774 is about 9114.9204055768. The cubic root of 83081774 is about 436.3502747303.

The spelling of 83081774 in words is "eighty-three million, eighty-one thousand, seven hundred seventy-four".