79287655 has 4 divisors (see below), whose sum is σ = 95145192. Its totient is φ = 63430120.

The previous prime is 79287641. The next prime is 79287661. The reversal of 79287655 is 55678297.

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

It is not a de Polignac number, because 79287655 - 2⁵ = 79287623 is a prime.

It is a super-3 number, since 3×79287655³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79287599 and 79287608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7928761 + ... + 7928770.

It is an arithmetic number, because the mean of its divisors is an integer number (23786298).

Almost surely, 2^79287655 is an apocalyptic number.

79287655 is a deficient number, since it is larger than the sum of its proper divisors (15857537).

79287655 is a wasteful number, since it uses less digits than its factorization.

79287655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15857536.

The product of its digits is 1058400, while the sum is 49.

The square root of 79287655 is about 8904.3615717243. The cubic root of 79287655 is about 429.6042058403.

The spelling of 79287655 in words is "seventy-nine million, two hundred eighty-seven thousand, six hundred fifty-five".