725723167 has 8 divisors (see below), whose sum is σ = 783730080. Its totient is φ = 668028000.

The previous prime is 725723153. The next prime is 725723179. The reversal of 725723167 is 761327527.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 725723167 - 2¹¹ = 725721119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725723147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73084 + ... + 82417.

It is an arithmetic number, because the mean of its divisors is an integer number (97966260).

Almost surely, 2^725723167 is an apocalyptic number.

725723167 is a deficient number, since it is larger than the sum of its proper divisors (58006913).

725723167 is a wasteful number, since it uses less digits than its factorization.

725723167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155873.

The product of its digits is 123480, while the sum is 40.

The square root of 725723167 is about 26939.2495626734. The cubic root of 725723167 is about 898.6494835174.

The spelling of 725723167 in words is "seven hundred twenty-five million, seven hundred twenty-three thousand, one hundred sixty-seven".