725073784 has 8 divisors (see below), whose sum is σ = 1359513360. Its totient is φ = 362536888.

The previous prime is 725073757. The next prime is 725073809. The reversal of 725073784 is 487370527.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 725073784.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45317104 + ... + 45317119.

It is an arithmetic number, because the mean of its divisors is an integer number (169939170).

Almost surely, 2^725073784 is an apocalyptic number.

It is an amenable number.

725073784 is a deficient number, since it is larger than the sum of its proper divisors (634439576).

725073784 is a wasteful number, since it uses less digits than its factorization.

725073784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90634229 (or 90634225 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 43.

The square root of 725073784 is about 26927.1941352975. The cubic root of 725073784 is about 898.3813639042.

The spelling of 725073784 in words is "seven hundred twenty-five million, seventy-three thousand, seven hundred eighty-four".