718236473 has 4 divisors (see below), whose sum is σ = 718290468. Its totient is φ = 718182480.

The previous prime is 718236437. The next prime is 718236487. The reversal of 718236473 is 374632817.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 705008704 + 13227769 = 26552^2 + 3637^2 .

It is a cyclic number.

It is not a de Polignac number, because 718236473 - 2⁸ = 718236217 is a prime.

It is a super-2 number, since 2×718236473² = 1031727262294959458, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 718236473.

It is not an unprimeable number, because it can be changed into a prime (718236373) 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, 8615 + ... + 38867.

It is an arithmetic number, because the mean of its divisors is an integer number (179572617).

Almost surely, 2^718236473 is an apocalyptic number.

It is an amenable number.

718236473 is a deficient number, since it is larger than the sum of its proper divisors (53995).

718236473 is a wasteful number, since it uses less digits than its factorization.

718236473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53994.

The product of its digits is 169344, while the sum is 41.

The square root of 718236473 is about 26799.9341976804. The cubic root of 718236473 is about 895.5485845417.

The spelling of 718236473 in words is "seven hundred eighteen million, two hundred thirty-six thousand, four hundred seventy-three".