819727053 has 4 divisors (see below), whose sum is σ = 1092969408. Its totient is φ = 546484700.

The previous prime is 819727049. The next prime is 819727057. The reversal of 819727053 is 350727918.

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 an interprime number because it is at equal distance from previous prime (819727049) and next prime (819727057).

It is a cyclic number.

It is not a de Polignac number, because 819727053 - 2² = 819727049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 819726996 and 819727014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (819727057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136621173 + ... + 136621178.

It is an arithmetic number, because the mean of its divisors is an integer number (273242352).

Almost surely, 2^819727053 is an apocalyptic number.

It is an amenable number.

819727053 is a deficient number, since it is larger than the sum of its proper divisors (273242355).

819727053 is a wasteful number, since it uses less digits than its factorization.

819727053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273242354.

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 819727053 is about 28630.8758685444. The cubic root of 819727053 is about 935.8862988758.

The spelling of 819727053 in words is "eight hundred nineteen million, seven hundred twenty-seven thousand, fifty-three".