97090071447 has 16 divisors (see below), whose sum is σ = 132756383232. Its totient is φ = 63086666880.

The previous prime is 97090071409. The next prime is 97090071499. The reversal of 97090071447 is 74417009079.

It is not a de Polignac number, because 97090071447 - 2⁷ = 97090071319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97090071396 and 97090071405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97090071847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1394613 + ... + 1462574.

It is an arithmetic number, because the mean of its divisors is an integer number (8297273952).

Almost surely, 2^97090071447 is an apocalyptic number.

97090071447 is a deficient number, since it is larger than the sum of its proper divisors (35666311785).

97090071447 is a wasteful number, since it uses less digits than its factorization.

97090071447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857478.

The product of its (nonzero) digits is 444528, while the sum is 48.

The spelling of 97090071447 in words is "ninety-seven billion, ninety million, seventy-one thousand, four hundred forty-seven".