99747047 has 2 divisors, whose sum is σ = 99747048. Its totient is φ = 99747046.

The previous prime is 99747001. The next prime is 99747101. The reversal of 99747047 is 74074799.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99747047 - 2¹⁶ = 99681511 is a prime.

It is a Chen prime.

It is equal to p_5747699 and since 99747047 and 5747699 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 99746992 and 99747010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99743047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49873523 + 49873524.

It is an arithmetic number, because the mean of its divisors is an integer number (49873524).

Almost surely, 2^99747047 is an apocalyptic number.

99747047 is a deficient number, since it is larger than the sum of its proper divisors (1).

99747047 is an equidigital number, since it uses as much as digits as its factorization.

99747047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 99747047 is about 9987.3443417157. The cubic root of 99747047 is about 463.7671849644.

The spelling of 99747047 in words is "ninety-nine million, seven hundred forty-seven thousand, forty-seven".