83038778 has 32 divisors (see below), whose sum is σ = 139760640. Its totient is φ = 36771840.

The previous prime is 83038777. The next prime is 83038807. The reversal of 83038778 is 87783038.

It is not an unprimeable number, because it can be changed into a prime (83038777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123050 + ... + 123722.

It is an arithmetic number, because the mean of its divisors is an integer number (4367520).

Almost surely, 2^83038778 is an apocalyptic number.

83038778 is a deficient number, since it is larger than the sum of its proper divisors (56721862).

83038778 is a wasteful number, since it uses less digits than its factorization.

83038778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 83038778 is about 9112.5615498607. The cubic root of 83038778 is about 436.2749892501.

The spelling of 83038778 in words is "eighty-three million, thirty-eight thousand, seven hundred seventy-eight".