79777827 has 12 divisors (see below), whose sum is σ = 121299880. Its totient is φ = 50385888.

The previous prime is 79777781. The next prime is 79777837. The reversal of 79777827 is 72877797.

It is not a de Polignac number, because 79777827 - 2⁷ = 79777699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79777837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 233098 + ... + 233439.

Almost surely, 2^79777827 is an apocalyptic number.

79777827 is a deficient number, since it is larger than the sum of its proper divisors (41522053).

79777827 is a wasteful number, since it uses less digits than its factorization.

79777827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466562 (or 466559 counting only the distinct ones).

The product of its digits is 2420208, while the sum is 54.

The square root of 79777827 is about 8931.8434267513. The cubic root of 79777827 is about 430.4876871678.

The spelling of 79777827 in words is "seventy-nine million, seven hundred seventy-seven thousand, eight hundred twenty-seven".