76982197 has 4 divisors (see below), whose sum is σ = 78287040. Its totient is φ = 75677356.

The previous prime is 76982179. The next prime is 76982201. The reversal of 76982197 is 79128967.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79128967 = 199 ⋅397633.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76982197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76982197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76982117) 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, 652333 + ... + 652450.

It is an arithmetic number, because the mean of its divisors is an integer number (19571760).

Almost surely, 2^76982197 is an apocalyptic number.

It is an amenable number.

76982197 is a deficient number, since it is larger than the sum of its proper divisors (1304843).

76982197 is a wasteful number, since it uses less digits than its factorization.

76982197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304842.

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

The square root of 76982197 is about 8773.9499086785. The cubic root of 76982197 is about 425.3992962464.

The spelling of 76982197 in words is "seventy-six million, nine hundred eighty-two thousand, one hundred ninety-seven".