792781987 has 2 divisors, whose sum is σ = 792781988. Its totient is φ = 792781986.

The previous prime is 792781937. The next prime is 792781993. The reversal of 792781987 is 789187297.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-792781987 is a prime.

It is not a weakly prime, because it can be changed into another prime (792781907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 396390993 + 396390994.

It is an arithmetic number, because the mean of its divisors is an integer number (396390994).

Almost surely, 2^792781987 is an apocalyptic number.

792781987 is a deficient number, since it is larger than the sum of its proper divisors (1).

792781987 is an equidigital number, since it uses as much as digits as its factorization.

792781987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3556224, while the sum is 58.

The square root of 792781987 is about 28156.3844802560. The cubic root of 792781987 is about 925.5174069506.

The spelling of 792781987 in words is "seven hundred ninety-two million, seven hundred eighty-one thousand, nine hundred eighty-seven".