787973 has 2 divisors, whose sum is σ = 787974. Its totient is φ = 787972.

The previous prime is 787939. The next prime is 787981. The reversal of 787973 is 379787.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 494209 + 293764 = 703^2 + 542^2 .

It is an emirp because it is prime and its reverse (379787) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 787973 - 2¹⁰ = 786949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 787973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (787903) 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, 393986 + 393987.

It is an arithmetic number, because the mean of its divisors is an integer number (393987).

2⁷⁸⁷⁹⁷³ is an apocalyptic number.

It is an amenable number.

787973 is a deficient number, since it is larger than the sum of its proper divisors (1).

787973 is an equidigital number, since it uses as much as digits as its factorization.

787973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 74088, while the sum is 41.

The square root of 787973 is about 887.6784327672. The cubic root of 787973 is about 92.3642225136.

The spelling of 787973 in words is "seven hundred eighty-seven thousand, nine hundred seventy-three".