79000001 has 8 divisors (see below), whose sum is σ = 80150280. Its totient is φ = 77856768.

The previous prime is 78999979. The next prime is 79000007. The reversal of 79000001 is 10000097.

It can be written as a sum of positive squares in 4 ways, for example, as 46566976 + 32433025 = 6824^2 + 5695^2 .

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 79000001 - 2⁶ = 78999937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79000007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23345 + ... + 26513.

It is an arithmetic number, because the mean of its divisors is an integer number (10018785).

Almost surely, 2^79000001 is an apocalyptic number.

It is an amenable number.

79000001 is a deficient number, since it is larger than the sum of its proper divisors (1150279).

79000001 is a wasteful number, since it uses less digits than its factorization.

79000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3523.

The product of its (nonzero) digits is 63, while the sum is 17.

The square root of 79000001 is about 8888.1944735700. The cubic root of 79000001 is about 429.0840445131.

Adding to 79000001 its reverse (10000097), we get a palindrome (89000098).

The spelling of 79000001 in words is "seventy-nine million, one", and thus it is an aban number and an uban number.