79506541 has 2 divisors, whose sum is σ = 79506542. Its totient is φ = 79506540.

The previous prime is 79506533. The next prime is 79506547. The reversal of 79506541 is 14560597.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72505225 + 7001316 = 8515^2 + 2646^2 .

It is a cyclic number.

It is not a de Polignac number, because 79506541 - 2³ = 79506533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79506541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79506547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39753270 + 39753271.

It is an arithmetic number, because the mean of its divisors is an integer number (39753271).

Almost surely, 2^79506541 is an apocalyptic number.

It is an amenable number.

79506541 is a deficient number, since it is larger than the sum of its proper divisors (1).

79506541 is an equidigital number, since it uses as much as digits as its factorization.

79506541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 79506541 is about 8916.6440435850. The cubic root of 79506541 is about 429.9991725241. Note that the first 3 decimals are identical.

The spelling of 79506541 in words is "seventy-nine million, five hundred six thousand, five hundred forty-one".