82700691 has 8 divisors (see below), whose sum is σ = 111061440. Its totient is φ = 54736872.

The previous prime is 82700687. The next prime is 82700701. The reversal of 82700691 is 19600728.

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

It is not a de Polignac number, because 82700691 - 2² = 82700687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82700641) 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, 98745 + ... + 99578.

It is an arithmetic number, because the mean of its divisors is an integer number (13882680).

Almost surely, 2^82700691 is an apocalyptic number.

82700691 is a deficient number, since it is larger than the sum of its proper divisors (28360749).

82700691 is a wasteful number, since it uses less digits than its factorization.

82700691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198465.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 82700691 is about 9093.9920277071. The cubic root of 82700691 is about 435.6820954348.

The spelling of 82700691 in words is "eighty-two million, seven hundred thousand, six hundred ninety-one".