97281679 has 4 divisors (see below), whose sum is σ = 106125480. Its totient is φ = 88437880.

The previous prime is 97281673. The next prime is 97281707. The reversal of 97281679 is 97618279.

It is a happy number.

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 97281679 - 2⁵ = 97281647 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97281673) 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, 4421884 + ... + 4421905.

It is an arithmetic number, because the mean of its divisors is an integer number (26531370).

Almost surely, 2^97281679 is an apocalyptic number.

97281679 is a deficient number, since it is larger than the sum of its proper divisors (8843801).

97281679 is a wasteful number, since it uses less digits than its factorization.

97281679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8843800.

The product of its digits is 381024, while the sum is 49.

The square root of 97281679 is about 9863.1475199350. The cubic root of 97281679 is about 459.9144122429.

The spelling of 97281679 in words is "ninety-seven million, two hundred eighty-one thousand, six hundred seventy-nine".