928725990 has 32 divisors (see below), whose sum is σ = 2233810656. Its totient is φ = 247119360.

The previous prime is 928725989. The next prime is 928725991. The reversal of 928725990 is 99527829.

It is an interprime number because it is at equal distance from previous prime (928725989) and next prime (928725991).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (928725991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19747 + ... + 47406.

It is an arithmetic number, because the mean of its divisors is an integer number (69806583).

Almost surely, 2^928725990 is an apocalyptic number.

928725990 is an abundant number, since it is smaller than the sum of its proper divisors (1305084666).

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

928725990 is a wasteful number, since it uses less digits than its factorization.

928725990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67624.

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 928725990 is about 30475.0059885146. The cubic root of 928725990 is about 975.6540831323.

The spelling of 928725990 in words is "nine hundred twenty-eight million, seven hundred twenty-five thousand, nine hundred ninety".