102406387 has 2 divisors, whose sum is σ = 102406388. Its totient is φ = 102406386.

The previous prime is 102406331. The next prime is 102406393. The reversal of 102406387 is 783604201.

It is a strong prime.

It is an emirp because it is prime and its reverse (783604201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102406387 - 2¹¹ = 102404339 is a prime.

It is a Chen prime.

It is equal to p_5892133 and since 102406387 and 5892133 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (102400387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51203193 + 51203194.

It is an arithmetic number, because the mean of its divisors is an integer number (51203194).

Almost surely, 2^102406387 is an apocalyptic number.

102406387 is a deficient number, since it is larger than the sum of its proper divisors (1).

102406387 is an equidigital number, since it uses as much as digits as its factorization.

102406387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 102406387 is about 10119.6040930463. The cubic root of 102406387 is about 467.8525648396.

The spelling of 102406387 in words is "one hundred two million, four hundred six thousand, three hundred eighty-seven".