725940667 has 2 divisors, whose sum is σ = 725940668. Its totient is φ = 725940666.

The previous prime is 725940653. The next prime is 725940713. The reversal of 725940667 is 766049527.

It is an a-pointer prime, because the next prime (725940713) can be obtained adding 725940667 to its sum of digits (46).

It is a weak prime.

It is an emirp because it is prime and its reverse (766049527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 725940667 - 2⁷ = 725940539 is a prime.

It is not a weakly prime, because it can be changed into another prime (725940637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362970333 + 362970334.

It is an arithmetic number, because the mean of its divisors is an integer number (362970334).

Almost surely, 2^725940667 is an apocalyptic number.

725940667 is a deficient number, since it is larger than the sum of its proper divisors (1).

725940667 is an equidigital number, since it uses as much as digits as its factorization.

725940667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 46.

The square root of 725940667 is about 26943.2861210358. The cubic root of 725940667 is about 898.7392499502.

The spelling of 725940667 in words is "seven hundred twenty-five million, nine hundred forty thousand, six hundred sixty-seven".