79547801 has 2 divisors, whose sum is σ = 79547802. Its totient is φ = 79547800.

The previous prime is 79547791. The next prime is 79547821. The reversal of 79547801 is 10874597.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68492176 + 11055625 = 8276^2 + 3325^2 .

It is a cyclic number.

It is not a de Polignac number, because 79547801 - 2¹⁰ = 79546777 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 (79547821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39773900 + 39773901.

It is an arithmetic number, because the mean of its divisors is an integer number (39773901).

Almost surely, 2^79547801 is an apocalyptic number.

It is an amenable number.

79547801 is a deficient number, since it is larger than the sum of its proper divisors (1).

79547801 is an equidigital number, since it uses as much as digits as its factorization.

79547801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 79547801 is about 8918.9573942250. The cubic root of 79547801 is about 430.0735424962.

The spelling of 79547801 in words is "seventy-nine million, five hundred forty-seven thousand, eight hundred one".