78305001 has 8 divisors (see below), whose sum is σ = 104723424. Its totient is φ = 52044960.

The previous prime is 78304991. The next prime is 78305011. The reversal of 78305001 is 10050387.

It is an interprime number because it is at equal distance from previous prime (78304991) and next prime (78305011).

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

It is not a de Polignac number, because 78305001 - 2⁵ = 78304969 is a prime.

It is a super-2 number, since 2×78305001² = 12263346363220002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78305011) 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, 38436 + ... + 40421.

It is an arithmetic number, because the mean of its divisors is an integer number (13090428).

Almost surely, 2^78305001 is an apocalyptic number.

It is an amenable number.

78305001 is a deficient number, since it is larger than the sum of its proper divisors (26418423).

78305001 is a wasteful number, since it uses less digits than its factorization.

78305001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79191.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 78305001 is about 8849.0113007047. The cubic root of 78305001 is about 427.8220520482.

Adding to 78305001 its reverse (10050387), we get a palindrome (88355388).

The spelling of 78305001 in words is "seventy-eight million, three hundred five thousand, one".