83749418 has 4 divisors (see below), whose sum is σ = 125624130. Its totient is φ = 41874708.

The previous prime is 83749357. The next prime is 83749427. The reversal of 83749418 is 81494738.

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

It can be written as a sum of positive squares in only one way, i.e., 82755409 + 994009 = 9097^2 + 997^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20937353 + ... + 20937356.

Almost surely, 2^83749418 is an apocalyptic number.

83749418 is a deficient number, since it is larger than the sum of its proper divisors (41874712).

83749418 is a wasteful number, since it uses less digits than its factorization.

83749418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41874711.

The product of its digits is 193536, while the sum is 44.

The square root of 83749418 is about 9151.4708107495. The cubic root of 83749418 is about 437.5159926671.

The spelling of 83749418 in words is "eighty-three million, seven hundred forty-nine thousand, four hundred eighteen".