78470801 has 4 divisors (see below), whose sum is σ = 78822912. Its totient is φ = 78118692.

The previous prime is 78470789. The next prime is 78470803. The reversal of 78470801 is 10807487.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10807487 = 283 ⋅38189.

It is a cyclic number.

It is not a de Polignac number, because 78470801 - 2⁶ = 78470737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78470803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175721 + ... + 176166.

It is an arithmetic number, because the mean of its divisors is an integer number (19705728).

Almost surely, 2^78470801 is an apocalyptic number.

It is an amenable number.

78470801 is a deficient number, since it is larger than the sum of its proper divisors (352111).

78470801 is a wasteful number, since it uses less digits than its factorization.

78470801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352110.

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 78470801 is about 8858.3746251781. The cubic root of 78470801 is about 428.1237905093.

The spelling of 78470801 in words is "seventy-eight million, four hundred seventy thousand, eight hundred one".