97487678479 has 4 divisors (see below), whose sum is σ = 97492933584. Its totient is φ = 97482423376.

The previous prime is 97487678473. The next prime is 97487678503.

97487678479 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97487678479 - 2⁹ = 97487677967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97487678473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2599627 + ... + 2636860.

It is an arithmetic number, because the mean of its divisors is an integer number (24373233396).

Almost surely, 2^97487678479 is an apocalyptic number.

97487678479 is a deficient number, since it is larger than the sum of its proper divisors (5255105).

97487678479 is a wasteful number, since it uses less digits than its factorization.

97487678479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5255104.

The product of its digits is 1194891264, while the sum is 76.

The spelling of 97487678479 in words is "ninety-seven billion, four hundred eighty-seven million, six hundred seventy-eight thousand, four hundred seventy-nine".