787298399 has 4 divisors (see below), whose sum is σ = 787459680. Its totient is φ = 787137120.

The previous prime is 787298329. The next prime is 787298401. The reversal of 787298399 is 993892787.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 787298399 - 2⁸ = 787298143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (787298329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73082 + ... + 83159.

It is an arithmetic number, because the mean of its divisors is an integer number (196864920).

Almost surely, 2^787298399 is an apocalyptic number.

787298399 is a deficient number, since it is larger than the sum of its proper divisors (161281).

787298399 is a wasteful number, since it uses less digits than its factorization.

787298399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161280.

The product of its digits is 13716864, while the sum is 62.

The square root of 787298399 is about 28058.8381619767. The cubic root of 787298399 is about 923.3785664116.

The spelling of 787298399 in words is "seven hundred eighty-seven million, two hundred ninety-eight thousand, three hundred ninety-nine".