79665895 has 8 divisors (see below), whose sum is σ = 95798304. Its totient is φ = 63599904.

The previous prime is 79665889. The next prime is 79665899. The reversal of 79665895 is 59856697.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79665895 - 2¹¹ = 79663847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79665899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13924 + ... + 18793.

It is an arithmetic number, because the mean of its divisors is an integer number (11974788).

Almost surely, 2^79665895 is an apocalyptic number.

79665895 is a deficient number, since it is larger than the sum of its proper divisors (16132409).

79665895 is a wasteful number, since it uses less digits than its factorization.

79665895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33209.

The product of its digits is 4082400, while the sum is 55.

The square root of 79665895 is about 8925.5753315963. The cubic root of 79665895 is about 430.2862615227.

It can be divided in two parts, 7966 and 5895, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 79665895 in words is "seventy-nine million, six hundred sixty-five thousand, eight hundred ninety-five".