97429487 has 4 divisors (see below), whose sum is σ = 97781496. Its totient is φ = 97077480.

The previous prime is 97429481. The next prime is 97429513. The reversal of 97429487 is 78492479.

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 97429487 - 2¹⁶ = 97363951 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 (97429481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175589 + ... + 176142.

It is an arithmetic number, because the mean of its divisors is an integer number (24445374).

Almost surely, 2^97429487 is an apocalyptic number.

97429487 is a deficient number, since it is larger than the sum of its proper divisors (352009).

97429487 is a wasteful number, since it uses less digits than its factorization.

97429487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352008.

The product of its digits is 1016064, while the sum is 50.

The square root of 97429487 is about 9870.6376187154. The cubic root of 97429487 is about 460.1472228826.

The spelling of 97429487 in words is "ninety-seven million, four hundred twenty-nine thousand, four hundred eighty-seven".