83897078 has 8 divisors (see below), whose sum is σ = 126618168. Its totient is φ = 41691024.

The previous prime is 83897071. The next prime is 83897081. The reversal of 83897078 is 87079838.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83897071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128351 + ... + 129002.

It is an arithmetic number, because the mean of its divisors is an integer number (15827271).

Almost surely, 2^83897078 is an apocalyptic number.

83897078 is a deficient number, since it is larger than the sum of its proper divisors (42721090).

83897078 is a wasteful number, since it uses less digits than its factorization.

83897078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257518.

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 83897078 is about 9159.5348135154. The cubic root of 83897078 is about 437.7729722866.

The spelling of 83897078 in words is "eighty-three million, eight hundred ninety-seven thousand, seventy-eight".