82707897 has 8 divisors (see below), whose sum is σ = 111308256. Its totient is φ = 54623072.

The previous prime is 82707883. The next prime is 82707899. The reversal of 82707897 is 79870728.

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

It is not a de Polignac number, because 82707897 - 2⁴ = 82707881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82707899) 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, 128508 + ... + 129149.

It is an arithmetic number, because the mean of its divisors is an integer number (13913532).

Almost surely, 2^82707897 is an apocalyptic number.

It is an amenable number.

82707897 is a deficient number, since it is larger than the sum of its proper divisors (28600359).

82707897 is a wasteful number, since it uses less digits than its factorization.

82707897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257767.

The product of its (nonzero) digits is 395136, while the sum is 48.

The square root of 82707897 is about 9094.3882147179. The cubic root of 82707897 is about 435.6947492347.

The spelling of 82707897 in words is "eighty-two million, seven hundred seven thousand, eight hundred ninety-seven".