97897019 has 8 divisors (see below), whose sum is σ = 106991280. Its totient is φ = 88835200.

The previous prime is 97896991. The next prime is 97897021. The reversal of 97897019 is 91079879.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97897019 - 2¹⁶ = 97831483 is a prime.

It is a super-2 number, since 2×97897019² = 19167652658172722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (97807019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1562 + ... + 14079.

It is an arithmetic number, because the mean of its divisors is an integer number (13373910).

Almost surely, 2^97897019 is an apocalyptic number.

97897019 is a deficient number, since it is larger than the sum of its proper divisors (9094261).

97897019 is a wasteful number, since it uses less digits than its factorization.

97897019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16221.

The product of its (nonzero) digits is 285768, while the sum is 50.

The square root of 97897019 is about 9894.2922435109. The cubic root of 97897019 is about 460.8820803136.

The spelling of 97897019 in words is "ninety-seven million, eight hundred ninety-seven thousand, nineteen".