83778476 has 6 divisors (see below), whose sum is σ = 146612340. Its totient is φ = 41889236.

The previous prime is 83778439. The next prime is 83778479. The reversal of 83778476 is 67487738.

It is not an unprimeable number, because it can be changed into a prime (83778479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10472306 + ... + 10472313.

It is an arithmetic number, because the mean of its divisors is an integer number (24435390).

Almost surely, 2^83778476 is an apocalyptic number.

It is an amenable number.

83778476 is a deficient number, since it is larger than the sum of its proper divisors (62833864).

83778476 is a wasteful number, since it uses less digits than its factorization.

83778476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20944623 (or 20944621 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 50.

The square root of 83778476 is about 9153.0582867149. The cubic root of 83778476 is about 437.5665875247.

The spelling of 83778476 in words is "eighty-three million, seven hundred seventy-eight thousand, four hundred seventy-six".