83263278 has 32 divisors (see below), whose sum is σ = 193547520. Its totient is φ = 23385600.

The previous prime is 83263277. The next prime is 83263291. The reversal of 83263278 is 87236238.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83263277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14323 + ... + 19278.

It is an arithmetic number, because the mean of its divisors is an integer number (6048360).

Almost surely, 2^83263278 is an apocalyptic number.

83263278 is an abundant number, since it is smaller than the sum of its proper divisors (110284242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83263278 is a wasteful number, since it uses less digits than its factorization.

83263278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33672.

The product of its digits is 96768, while the sum is 39.

The square root of 83263278 is about 9124.8713963540. The cubic root of 83263278 is about 436.6678001123.

The spelling of 83263278 in words is "eighty-three million, two hundred sixty-three thousand, two hundred seventy-eight".