77274897 has 8 divisors (see below), whose sum is σ = 117752256. Its totient is φ = 44157072.

The previous prime is 77274893. The next prime is 77274947. The reversal of 77274897 is 79847277.

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

It is not a de Polignac number, because 77274897 - 2² = 77274893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77274893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1839858 + ... + 1839899.

It is an arithmetic number, because the mean of its divisors is an integer number (14719032).

Almost surely, 2^77274897 is an apocalyptic number.

It is an amenable number.

77274897 is a deficient number, since it is larger than the sum of its proper divisors (40477359).

77274897 is a wasteful number, since it uses less digits than its factorization.

77274897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679767.

The product of its digits is 1382976, while the sum is 51.

The square root of 77274897 is about 8790.6141423680. The cubic root of 77274897 is about 425.9377622934.

The spelling of 77274897 in words is "seventy-seven million, two hundred seventy-four thousand, eight hundred ninety-seven".