78363801 has 16 divisors (see below), whose sum is σ = 116585920. Its totient is φ = 52021440.

The previous prime is 78363797. The next prime is 78363811. The reversal of 78363801 is 10836387.

It is not a de Polignac number, because 78363801 - 2² = 78363797 is a prime.

It is a super-2 number, since 2×78363801² = 12281770614335202, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78363811) 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, 486 + ... + 12528.

It is an arithmetic number, because the mean of its divisors is an integer number (7286620).

Almost surely, 2^78363801 is an apocalyptic number.

It is an amenable number.

78363801 is a deficient number, since it is larger than the sum of its proper divisors (38222119).

78363801 is a wasteful number, since it uses less digits than its factorization.

78363801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12293 (or 12287 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 78363801 is about 8852.3330823010. Note that the first 3 decimals coincide. The cubic root of 78363801 is about 427.9291105261.

The spelling of 78363801 in words is "seventy-eight million, three hundred sixty-three thousand, eight hundred one".