79783001 has 2 divisors, whose sum is σ = 79783002. Its totient is φ = 79783000.

The previous prime is 79782991. The next prime is 79783013. The reversal of 79783001 is 10038797.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44689225 + 35093776 = 6685^2 + 5924^2 .

It is an emirp because it is prime and its reverse (10038797) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79783001 - 2²² = 75588697 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (79785001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39891500 + 39891501.

It is an arithmetic number, because the mean of its divisors is an integer number (39891501).

Almost surely, 2^79783001 is an apocalyptic number.

It is an amenable number.

79783001 is a deficient number, since it is larger than the sum of its proper divisors (1).

79783001 is an equidigital number, since it uses as much as digits as its factorization.

79783001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 79783001 is about 8932.1330599135. The cubic root of 79783001 is about 430.4969934092.

The spelling of 79783001 in words is "seventy-nine million, seven hundred eighty-three thousand, one".