83774642 has 8 divisors (see below), whose sum is σ = 143613696. Its totient is φ = 35903412.

The previous prime is 83774641. The next prime is 83774653. The reversal of 83774642 is 24647738.

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

It is a self number, because there is not a number n which added to its sum of digits gives 83774642.

It is not an unprimeable number, because it can be changed into a prime (83774641) 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, 2991938 + ... + 2991965.

It is an arithmetic number, because the mean of its divisors is an integer number (17951712).

Almost surely, 2^83774642 is an apocalyptic number.

83774642 is a deficient number, since it is larger than the sum of its proper divisors (59839054).

83774642 is a wasteful number, since it uses less digits than its factorization.

83774642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5983912.

The product of its digits is 225792, while the sum is 41.

The square root of 83774642 is about 9152.8488461244. The cubic root of 83774642 is about 437.5599125569.

The spelling of 83774642 in words is "eighty-three million, seven hundred seventy-four thousand, six hundred forty-two".