725677243 has 2 divisors, whose sum is σ = 725677244. Its totient is φ = 725677242.

The previous prime is 725677231. The next prime is 725677247. The reversal of 725677243 is 342776527.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725677243 is a prime.

It is a super-2 number, since 2×725677243² = 1053214922016162098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 725677243.

It is not a weakly prime, because it can be changed into another prime (725677247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362838621 + 362838622.

It is an arithmetic number, because the mean of its divisors is an integer number (362838622).

Almost surely, 2^725677243 is an apocalyptic number.

725677243 is a deficient number, since it is larger than the sum of its proper divisors (1).

725677243 is an equidigital number, since it uses as much as digits as its factorization.

725677243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 493920, while the sum is 43.

The square root of 725677243 is about 26938.3971869152. The cubic root of 725677243 is about 898.6305275062.

The spelling of 725677243 in words is "seven hundred twenty-five million, six hundred seventy-seven thousand, two hundred forty-three".