16263887 has 2 divisors, whose sum is σ = 16263888. Its totient is φ = 16263886.

The previous prime is 16263857. The next prime is 16263911. The reversal of 16263887 is 78836261.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16263887 - 2⁶ = 16263823 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16263817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8131943 + 8131944.

It is an arithmetic number, because the mean of its divisors is an integer number (8131944).

Almost surely, 2^16263887 is an apocalyptic number.

16263887 is a deficient number, since it is larger than the sum of its proper divisors (1).

16263887 is an equidigital number, since it uses as much as digits as its factorization.

16263887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The square root of 16263887 is about 4032.8509766665. The cubic root of 16263887 is about 253.3619829479.

The spelling of 16263887 in words is "sixteen million, two hundred sixty-three thousand, eight hundred eighty-seven".