82749061 has 2 divisors, whose sum is σ = 82749062. Its totient is φ = 82749060.

The previous prime is 82748957. The next prime is 82749083. The reversal of 82749061 is 16094728.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46376100 + 36372961 = 6810^2 + 6031^2 .

It is a cyclic number.

It is not a de Polignac number, because 82749061 - 2²³ = 74360453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82749061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82749361) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41374530 + 41374531.

It is an arithmetic number, because the mean of its divisors is an integer number (41374531).

Almost surely, 2^82749061 is an apocalyptic number.

It is an amenable number.

82749061 is a deficient number, since it is larger than the sum of its proper divisors (1).

82749061 is an equidigital number, since it uses as much as digits as its factorization.

82749061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 82749061 is about 9096.6510870759. The cubic root of 82749061 is about 435.7670194963.

The spelling of 82749061 in words is "eighty-two million, seven hundred forty-nine thousand, sixty-one".