860402401 has 2 divisors, whose sum is σ = 860402402. Its totient is φ = 860402400.

The previous prime is 860402399. The next prime is 860402407. The reversal of 860402401 is 104204068.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 721728225 + 138674176 = 26865^2 + 11776^2 .

It is a cyclic number.

It is not a de Polignac number, because 860402401 - 2¹ = 860402399 is a prime.

Together with 860402399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (860402407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 430201200 + 430201201.

It is an arithmetic number, because the mean of its divisors is an integer number (430201201).

Almost surely, 2^860402401 is an apocalyptic number.

It is an amenable number.

860402401 is a deficient number, since it is larger than the sum of its proper divisors (1).

860402401 is an equidigital number, since it uses as much as digits as its factorization.

860402401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 860402401 is about 29332.6166749576. The cubic root of 860402401 is about 951.1168401518.

Adding to 860402401 its reverse (104204068), we get a palindrome (964606469).

The spelling of 860402401 in words is "eight hundred sixty million, four hundred two thousand, four hundred one".