78304802 has 16 divisors (see below), whose sum is σ = 121886520. Its totient is φ = 37698048.

The previous prime is 78304799. The next prime is 78304813. The reversal of 78304802 is 20840387.

It is a Cunningham number, because it is equal to 8849²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 70073641 + 8231161 = 8371^2 + 2869^2 .

It is a super-2 number, since 2×78304802² = 12263284032518408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1724 + ... + 12632.

Almost surely, 2^78304802 is an apocalyptic number.

78304802 is a deficient number, since it is larger than the sum of its proper divisors (43581718).

78304802 is a wasteful number, since it uses less digits than its factorization.

78304802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11045.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 78304802 is about 8849.0000565036. Note that the first 4 decimals coincide. The cubic root of 78304802 is about 427.8216896334.

The spelling of 78304802 in words is "seventy-eight million, three hundred four thousand, eight hundred two".