77800973 has 8 divisors (see below), whose sum is σ = 83378688. Its totient is φ = 72406224.

The previous prime is 77800967. The next prime is 77801023. The reversal of 77800973 is 37900877.

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 77800973 - 2¹⁴ = 77784589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 77800973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77800673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44861 + ... + 46562.

It is an arithmetic number, because the mean of its divisors is an integer number (10422336).

Almost surely, 2^77800973 is an apocalyptic number.

It is an amenable number.

77800973 is a deficient number, since it is larger than the sum of its proper divisors (5577715).

77800973 is a wasteful number, since it uses less digits than its factorization.

77800973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91483.

The product of its (nonzero) digits is 74088, while the sum is 41.

The square root of 77800973 is about 8820.4859843435. The cubic root of 77800973 is about 426.9021507568.

The spelling of 77800973 in words is "seventy-seven million, eight hundred thousand, nine hundred seventy-three".