83225978 has 24 divisors (see below), whose sum is σ = 137766720. Its totient is φ = 37679400.

The previous prime is 83225977. The next prime is 83225981. The reversal of 83225978 is 87952238.

It is not an unprimeable number, because it can be changed into a prime (83225977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79583 + ... + 80621.

It is an arithmetic number, because the mean of its divisors is an integer number (5740280).

Almost surely, 2^83225978 is an apocalyptic number.

83225978 is a deficient number, since it is larger than the sum of its proper divisors (54540742).

83225978 is a wasteful number, since it uses less digits than its factorization.

83225978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394 (or 1383 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 83225978 is about 9122.8273029801. The cubic root of 83225978 is about 436.6025847212.

The spelling of 83225978 in words is "eighty-three million, two hundred twenty-five thousand, nine hundred seventy-eight".