97928519 has 8 divisors (see below), whose sum is σ = 105618240. Its totient is φ = 90261216.

The previous prime is 97928461. The next prime is 97928521. The reversal of 97928519 is 91582979.

It is a happy number.

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 97928519 - 2²⁰ = 96879943 is a prime.

It is a super-2 number, since 2×97928519² = 19179989667066722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97925519) 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, 4109 + ... + 14585.

It is an arithmetic number, because the mean of its divisors is an integer number (13202280).

Almost surely, 2^97928519 is an apocalyptic number.

97928519 is a deficient number, since it is larger than the sum of its proper divisors (7689721).

97928519 is a wasteful number, since it uses less digits than its factorization.

97928519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11209.

The product of its digits is 408240, while the sum is 50.

The square root of 97928519 is about 9895.8839423267. The cubic root of 97928519 is about 460.9315071802.

The spelling of 97928519 in words is "ninety-seven million, nine hundred twenty-eight thousand, five hundred nineteen".