402800791 has 2 divisors, whose sum is σ = 402800792. Its totient is φ = 402800790.

The previous prime is 402800767. The next prime is 402800803. The reversal of 402800791 is 197008204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402800791 - 2¹⁷ = 402669719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402800731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201400395 + 201400396.

It is an arithmetic number, because the mean of its divisors is an integer number (201400396).

Almost surely, 2^402800791 is an apocalyptic number.

402800791 is a deficient number, since it is larger than the sum of its proper divisors (1).

402800791 is an equidigital number, since it uses as much as digits as its factorization.

402800791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 402800791 is about 20069.8976330224. The cubic root of 402800791 is about 738.5220018788.

Adding to 402800791 its reverse (197008204), we get a palindrome (599808995).

The spelling of 402800791 in words is "four hundred two million, eight hundred thousand, seven hundred ninety-one".