79545000 has 80 divisors (see below), whose sum is σ = 248545440. Its totient is φ = 21208000.

The previous prime is 79544987. The next prime is 79545007. The reversal of 79545000 is 54597.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79545007) 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 19 ways as a sum of consecutive naturals, for example, 12349 + ... + 17651.

It is an arithmetic number, because the mean of its divisors is an integer number (3106818).

Almost surely, 2^79545000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79545000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124272720).

79545000 is an abundant number, since it is smaller than the sum of its proper divisors (169000440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79545000 is a wasteful number, since it uses less digits than its factorization.

79545000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5332 (or 5313 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 79545000 is about 8918.8003677625. The cubic root of 79545000 is about 430.0684945874.

Adding to 79545000 its reverse (54597), we get a palindrome (79599597).

The spelling of 79545000 in words is "seventy-nine million, five hundred forty-five thousand".