1977847054 has 8 divisors (see below), whose sum is σ = 2973818808. Its totient is φ = 986574120.

The previous prime is 1977847033. The next prime is 1977847061. The reversal of 1977847054 is 4507487791.

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

It is a junction number, because it is equal to n+sod(n) for n = 1977846992 and 1977847010.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1173652 + ... + 1175335.

It is an arithmetic number, because the mean of its divisors is an integer number (371727351).

Almost surely, 2^1977847054 is an apocalyptic number.

1977847054 is a deficient number, since it is larger than the sum of its proper divisors (995971754).

1977847054 is a wasteful number, since it uses less digits than its factorization.

1977847054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349410.

The product of its (nonzero) digits is 1975680, while the sum is 52.

The square root of 1977847054 is about 44472.9924111252. The cubic root of 1977847054 is about 1255.2519409752.

The spelling of 1977847054 in words is "one billion, nine hundred seventy-seven million, eight hundred forty-seven thousand, fifty-four".