79320549 has 16 divisors (see below), whose sum is σ = 131857920. Its totient is φ = 41205360.

The previous prime is 79320529. The next prime is 79320587. The reversal of 79320549 is 94502397.

It is not a de Polignac number, because 79320549 - 2¹³ = 79312357 is a prime.

It is a super-4 number, since 4×79320549⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79320529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171459 + ... + 171920.

It is an arithmetic number, because the mean of its divisors is an integer number (8241120).

Almost surely, 2^79320549 is an apocalyptic number.

It is an amenable number.

79320549 is a deficient number, since it is larger than the sum of its proper divisors (52537371).

79320549 is a wasteful number, since it uses less digits than its factorization.

79320549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343400.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 79320549 is about 8906.2084525347. The cubic root of 79320549 is about 429.6636074666.

The spelling of 79320549 in words is "seventy-nine million, three hundred twenty thousand, five hundred forty-nine".