78050001 has 8 divisors (see below), whose sum is σ = 105077440. Its totient is φ = 51527952.

The previous prime is 78049999. The next prime is 78050023. The reversal of 78050001 is 10005087.

It is a happy number.

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

It is not a de Polignac number, because 78050001 - 2¹ = 78049999 is a prime.

It is a super-2 number, since 2×78050001² = 12183605312200002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78050001.

It is not an unprimeable number, because it can be changed into a prime (78050051) 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, 125986 + ... + 126603.

It is an arithmetic number, because the mean of its divisors is an integer number (13134680).

Almost surely, 2^78050001 is an apocalyptic number.

It is an amenable number.

78050001 is a deficient number, since it is larger than the sum of its proper divisors (27027439).

78050001 is a wasteful number, since it uses less digits than its factorization.

78050001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252695.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 78050001 is about 8834.5911620176. The cubic root of 78050001 is about 427.3571466198.

Adding to 78050001 its reverse (10005087), we get a palindrome (88055088).

The spelling of 78050001 in words is "seventy-eight million, fifty thousand, one".