97447511 has 12 divisors (see below), whose sum is σ = 115348272. Its totient is φ = 80641344.

The previous prime is 97447499. The next prime is 97447513. The reversal of 97447511 is 11574479.

It is not a de Polignac number, because 97447511 - 2¹⁰ = 97446487 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97447513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2390 + ... + 14163.

It is an arithmetic number, because the mean of its divisors is an integer number (9612356).

Almost surely, 2^97447511 is an apocalyptic number.

97447511 is a deficient number, since it is larger than the sum of its proper divisors (17900761).

97447511 is a wasteful number, since it uses less digits than its factorization.

97447511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16618 (or 16589 counting only the distinct ones).

The product of its digits is 35280, while the sum is 38.

The square root of 97447511 is about 9871.5505874204. The cubic root of 97447511 is about 460.1755961620.

The spelling of 97447511 in words is "ninety-seven million, four hundred forty-seven thousand, five hundred eleven".