78430001 has 8 divisors (see below), whose sum is σ = 84819840. Its totient is φ = 72091152.

The previous prime is 78429997. The next prime is 78430003. The reversal of 78430001 is 10003487.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78430001 - 2² = 78429997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78430003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9515 + ... + 15728.

It is an arithmetic number, because the mean of its divisors is an integer number (10602480).

Almost surely, 2^78430001 is an apocalyptic number.

It is an amenable number.

78430001 is a deficient number, since it is larger than the sum of its proper divisors (6389839).

78430001 is a wasteful number, since it uses less digits than its factorization.

78430001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25495.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 78430001 is about 8856.0714202179. The cubic root of 78430001 is about 428.0495782816.

Adding to 78430001 its reverse (10003487), we get a palindrome (88433488).

The spelling of 78430001 in words is "seventy-eight million, four hundred thirty thousand, one".