97899619 has 4 divisors (see below), whose sum is σ = 97966944. Its totient is φ = 97832296.

The previous prime is 97899611. The next prime is 97899623. The reversal of 97899619 is 91699879.

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 97899619 - 2³ = 97899611 is a prime.

It is a super-2 number, since 2×97899619² = 19168670800690322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97899611) 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, 31432 + ... + 34405.

It is an arithmetic number, because the mean of its divisors is an integer number (24491736).

Almost surely, 2^97899619 is an apocalyptic number.

97899619 is a deficient number, since it is larger than the sum of its proper divisors (67325).

97899619 is a wasteful number, since it uses less digits than its factorization.

97899619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67324.

The product of its digits is 2204496, while the sum is 58.

The square root of 97899619 is about 9894.4236315209. The cubic root of 97899619 is about 460.8861603929.

The spelling of 97899619 in words is "ninety-seven million, eight hundred ninety-nine thousand, six hundred nineteen".