9212049887 has 2 divisors, whose sum is σ = 9212049888. Its totient is φ = 9212049886.

The previous prime is 9212049881. The next prime is 9212049919. The reversal of 9212049887 is 7889402129.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9212049887 - 2⁶ = 9212049823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9212049881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4606024943 + 4606024944.

It is an arithmetic number, because the mean of its divisors is an integer number (4606024944).

Almost surely, 2^9212049887 is an apocalyptic number.

9212049887 is a deficient number, since it is larger than the sum of its proper divisors (1).

9212049887 is an equidigital number, since it uses as much as digits as its factorization.

9212049887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 9212049887 is about 95979.4242897924. The cubic root of 9212049887 is about 2096.2935290233.

The spelling of 9212049887 in words is "nine billion, two hundred twelve million, forty-nine thousand, eight hundred eighty-seven".