78473338 has 12 divisors (see below), whose sum is σ = 121632570. Its totient is φ = 37970040.

The previous prime is 78473327. The next prime is 78473357. The reversal of 78473338 is 83337487.

It can be written as a sum of positive squares in only one way, i.e., 41177889 + 37295449 = 6417^2 + 6107^2 .

It is a junction number, because it is equal to n+sod(n) for n = 78473294 and 78473303.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18493 + ... + 22336.

Almost surely, 2^78473338 is an apocalyptic number.

78473338 is a deficient number, since it is larger than the sum of its proper divisors (43159232).

78473338 is a wasteful number, since it uses less digits than its factorization.

78473338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40893 (or 40862 counting only the distinct ones).

The product of its digits is 338688, while the sum is 43.

The square root of 78473338 is about 8858.5178218481. The cubic root of 78473338 is about 428.1284042779.

The spelling of 78473338 in words is "seventy-eight million, four hundred seventy-three thousand, three hundred thirty-eight".