77197043 has 32 divisors (see below), whose sum is σ = 100638720. Its totient is φ = 57456000.

The previous prime is 77197033. The next prime is 77197061. The reversal of 77197043 is 34079177.

It is not a de Polignac number, because 77197043 - 2¹⁸ = 76934899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77196988 and 77197006.

It is not an unprimeable number, because it can be changed into a prime (77197013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 404078 + ... + 404268.

It is an arithmetic number, because the mean of its divisors is an integer number (3144960).

Almost surely, 2^77197043 is an apocalyptic number.

77197043 is a deficient number, since it is larger than the sum of its proper divisors (23441677).

77197043 is a wasteful number, since it uses less digits than its factorization.

77197043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419.

The product of its (nonzero) digits is 37044, while the sum is 38.

The square root of 77197043 is about 8786.1847806656. The cubic root of 77197043 is about 425.7946709724.

The spelling of 77197043 in words is "seventy-seven million, one hundred ninety-seven thousand, forty-three".