97428871 has 4 divisors (see below), whose sum is σ = 97477600. Its totient is φ = 97380144.

The previous prime is 97428869. The next prime is 97428889. The reversal of 97428871 is 17882479.

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 97428871 - 2¹ = 97428869 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 (97428811) 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, 21231 + ... + 25408.

It is an arithmetic number, because the mean of its divisors is an integer number (24369400).

Almost surely, 2^97428871 is an apocalyptic number.

97428871 is a deficient number, since it is larger than the sum of its proper divisors (48729).

97428871 is a wasteful number, since it uses less digits than its factorization.

97428871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48728.

The product of its digits is 225792, while the sum is 46.

The square root of 97428871 is about 9870.6064150081. The cubic root of 97428871 is about 460.1462531171.

The spelling of 97428871 in words is "ninety-seven million, four hundred twenty-eight thousand, eight hundred seventy-one".