79475547 has 4 divisors (see below), whose sum is σ = 105967400. Its totient is φ = 52983696.

The previous prime is 79475533. The next prime is 79475549. The reversal of 79475547 is 74557497.

It is a happy number.

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

It is not a de Polignac number, because 79475547 - 2⁴ = 79475531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79475496 and 79475505.

It is not an unprimeable number, because it can be changed into a prime (79475549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13245922 + ... + 13245927.

It is an arithmetic number, because the mean of its divisors is an integer number (26491850).

Almost surely, 2^79475547 is an apocalyptic number.

79475547 is a deficient number, since it is larger than the sum of its proper divisors (26491853).

79475547 is a wasteful number, since it uses less digits than its factorization.

79475547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26491852.

The product of its digits is 1234800, while the sum is 48.

The square root of 79475547 is about 8914.9058884545. The cubic root of 79475547 is about 429.9432897990.

The spelling of 79475547 in words is "seventy-nine million, four hundred seventy-five thousand, five hundred forty-seven".