102772823 has 2 divisors, whose sum is σ = 102772824. Its totient is φ = 102772822.

The previous prime is 102772819. The next prime is 102772829. The reversal of 102772823 is 328277201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102772823 - 2² = 102772819 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102772823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102772829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51386411 + 51386412.

It is an arithmetic number, because the mean of its divisors is an integer number (51386412).

Almost surely, 2^102772823 is an apocalyptic number.

102772823 is a deficient number, since it is larger than the sum of its proper divisors (1).

102772823 is an equidigital number, since it uses as much as digits as its factorization.

102772823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 102772823 is about 10137.6931794171. The cubic root of 102772823 is about 468.4099322399.

The spelling of 102772823 in words is "one hundred two million, seven hundred seventy-two thousand, eight hundred twenty-three".