82702971 has 16 divisors (see below), whose sum is σ = 131948320. Its totient is φ = 50893920.

The previous prime is 82702969. The next prime is 82702973. The reversal of 82702971 is 17920728.

It is an interprime number because it is at equal distance from previous prime (82702969) and next prime (82702973).

It is not a de Polignac number, because 82702971 - 2¹ = 82702969 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 (82702973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117460 + ... + 118161.

It is an arithmetic number, because the mean of its divisors is an integer number (8246770).

Almost surely, 2^82702971 is an apocalyptic number.

82702971 is a deficient number, since it is larger than the sum of its proper divisors (49245349).

82702971 is a wasteful number, since it uses less digits than its factorization.

82702971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235643 (or 235637 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 82702971 is about 9094.1173843315. The cubic root of 82702971 is about 435.6860992145.

The spelling of 82702971 in words is "eighty-two million, seven hundred two thousand, nine hundred seventy-one".