78474476 has 6 divisors (see below), whose sum is σ = 137330340. Its totient is φ = 39237236.

The previous prime is 78474463. The next prime is 78474479. The reversal of 78474476 is 67447487.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 78474476.

It is not an unprimeable number, because it can be changed into a prime (78474479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9809306 + ... + 9809313.

It is an arithmetic number, because the mean of its divisors is an integer number (22888390).

Almost surely, 2^78474476 is an apocalyptic number.

It is an amenable number.

78474476 is a deficient number, since it is larger than the sum of its proper divisors (58855864).

78474476 is a wasteful number, since it uses less digits than its factorization.

78474476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19618623 (or 19618621 counting only the distinct ones).

The product of its digits is 1053696, while the sum is 47.

The square root of 78474476 is about 8858.5820535795. The cubic root of 78474476 is about 428.1304738036.

The spelling of 78474476 in words is "seventy-eight million, four hundred seventy-four thousand, four hundred seventy-six".