718895057 has 4 divisors (see below), whose sum is σ = 724555776. Its totient is φ = 713234340.

The previous prime is 718895029. The next prime is 718895071. The reversal of 718895057 is 750598817.

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, and also an emirpimes, since its reverse is a distinct semiprime: 750598817 = 461 ⋅1628197.

It is a cyclic number.

It is not a de Polignac number, because 718895057 - 2¹⁸ = 718632913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 718894996 and 718895014.

It is not an unprimeable number, because it can be changed into a prime (718891057) 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, 2830169 + ... + 2830422.

It is an arithmetic number, because the mean of its divisors is an integer number (181138944).

Almost surely, 2^718895057 is an apocalyptic number.

It is an amenable number.

718895057 is a deficient number, since it is larger than the sum of its proper divisors (5660719).

718895057 is a wasteful number, since it uses less digits than its factorization.

718895057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5660718.

The product of its (nonzero) digits is 705600, while the sum is 50.

The square root of 718895057 is about 26812.2184274260. The cubic root of 718895057 is about 895.8222241266.

The spelling of 718895057 in words is "seven hundred eighteen million, eight hundred ninety-five thousand, fifty-seven".