79924451 has 4 divisors (see below), whose sum is σ = 80453904. Its totient is φ = 79395000.

The previous prime is 79924447. The next prime is 79924499. The reversal of 79924451 is 15442997.

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 79924451 - 2² = 79924447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79924399 and 79924408.

It is not an unprimeable number, because it can be changed into a prime (79924421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264500 + ... + 264801.

It is an arithmetic number, because the mean of its divisors is an integer number (20113476).

Almost surely, 2^79924451 is an apocalyptic number.

79924451 is a deficient number, since it is larger than the sum of its proper divisors (529453).

79924451 is a wasteful number, since it uses less digits than its factorization.

79924451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529452.

The product of its digits is 90720, while the sum is 41.

The square root of 79924451 is about 8940.0475949516. The cubic root of 79924451 is about 430.7512574649.

The spelling of 79924451 in words is "seventy-nine million, nine hundred twenty-four thousand, four hundred fifty-one".