82698749 has 8 divisors (see below), whose sum is σ = 97772160. Its totient is φ = 68440176.

The previous prime is 82698713. The next prime is 82698751. The reversal of 82698749 is 94789628.

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

It is a de Polignac number, because none of the positive numbers 2^k-82698749 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82698749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82698799) 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, 203489 + ... + 203894.

It is an arithmetic number, because the mean of its divisors is an integer number (12221520).

Almost surely, 2^82698749 is an apocalyptic number.

It is an amenable number.

82698749 is a deficient number, since it is larger than the sum of its proper divisors (15073411).

82698749 is a wasteful number, since it uses less digits than its factorization.

82698749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407419.

The product of its digits is 1741824, while the sum is 53.

The square root of 82698749 is about 9093.8852532897. The cubic root of 82698749 is about 435.6786851398.

The spelling of 82698749 in words is "eighty-two million, six hundred ninety-eight thousand, seven hundred forty-nine".