825672739 has 2 divisors, whose sum is σ = 825672740. Its totient is φ = 825672738.

The previous prime is 825672737. The next prime is 825672761. The reversal of 825672739 is 937276528.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 825672739 - 2¹ = 825672737 is a prime.

Together with 825672737, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 825672692 and 825672701.

It is not a weakly prime, because it can be changed into another prime (825672733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412836369 + 412836370.

It is an arithmetic number, because the mean of its divisors is an integer number (412836370).

Almost surely, 2^825672739 is an apocalyptic number.

825672739 is a deficient number, since it is larger than the sum of its proper divisors (1).

825672739 is an equidigital number, since it uses as much as digits as its factorization.

825672739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 49.

The square root of 825672739 is about 28734.5217290979. The cubic root of 825672739 is about 938.1435894614.

The spelling of 825672739 in words is "eight hundred twenty-five million, six hundred seventy-two thousand, seven hundred thirty-nine".