814293977 has 4 divisors (see below), whose sum is σ = 930621696. Its totient is φ = 697966260.

The previous prime is 814293973. The next prime is 814294021. The reversal of 814293977 is 779392418.

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.

It is a cyclic number.

It is not a de Polignac number, because 814293977 - 2² = 814293973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (814293971) 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 3 ways as a sum of consecutive naturals, for example, 58163849 + ... + 58163862.

It is an arithmetic number, because the mean of its divisors is an integer number (232655424).

Almost surely, 2^814293977 is an apocalyptic number.

It is an amenable number.

814293977 is a deficient number, since it is larger than the sum of its proper divisors (116327719).

814293977 is a wasteful number, since it uses less digits than its factorization.

814293977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116327718.

The product of its digits is 762048, while the sum is 50.

The square root of 814293977 is about 28535.8367145595. The cubic root of 814293977 is about 933.8140576127.

The spelling of 814293977 in words is "eight hundred fourteen million, two hundred ninety-three thousand, nine hundred seventy-seven".