79450147 has 4 divisors (see below), whose sum is σ = 90800176. Its totient is φ = 68100120.

The previous prime is 79450097. The next prime is 79450159. The reversal of 79450147 is 74105497.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79450147 - 2¹¹ = 79448099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79450177) 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 in 3 ways as a sum of consecutive naturals, for example, 5675004 + ... + 5675017.

It is an arithmetic number, because the mean of its divisors is an integer number (22700044).

Almost surely, 2^79450147 is an apocalyptic number.

79450147 is a deficient number, since it is larger than the sum of its proper divisors (11350029).

79450147 is a wasteful number, since it uses less digits than its factorization.

79450147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11350028.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 79450147 is about 8913.4811942361. The cubic root of 79450147 is about 429.8974823208.

It can be divided in two parts, 79450 and 147, that added together give a palindrome (79597).

The spelling of 79450147 in words is "seventy-nine million, four hundred fifty thousand, one hundred forty-seven".