725692770 has 192 divisors, whose sum is σ = 2261540736. Its totient is φ = 165473280.

The previous prime is 725692763. The next prime is 725692771. The reversal of 725692770 is 77296527.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725692771) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 453612 + ... + 455208.

It is an arithmetic number, because the mean of its divisors is an integer number (11778858).

Almost surely, 2^725692770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 725692770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1130770368).

725692770 is an abundant number, since it is smaller than the sum of its proper divisors (1535847966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

725692770 is a wasteful number, since it uses less digits than its factorization.

725692770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647 (or 1635 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The square root of 725692770 is about 26938.6853799513. The cubic root of 725692770 is about 898.6369366626.

The spelling of 725692770 in words is "seven hundred twenty-five million, six hundred ninety-two thousand, seven hundred seventy".