907720632 has 144 divisors (see below), whose sum is σ = 3042645840. Its totient is φ = 239376384.

The previous prime is 907720631. The next prime is 907720657. The reversal of 907720632 is 236027709.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (907720631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 79848 + ... + 90504.

It is an arithmetic number, because the mean of its divisors is an integer number (21129485).

Almost surely, 2^907720632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 907720632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1521322920).

907720632 is an abundant number, since it is smaller than the sum of its proper divisors (2134925208).

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

907720632 is a wasteful number, since it uses less digits than its factorization.

907720632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10702 (or 10682 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 907720632 is about 30128.4024136694. The cubic root of 907720632 is about 968.2423379553.

The spelling of 907720632 in words is "nine hundred seven million, seven hundred twenty thousand, six hundred thirty-two".