989752630 has 8 divisors (see below), whose sum is σ = 1781554752. Its totient is φ = 395901048.

The previous prime is 989752613. The next prime is 989752639. The reversal of 989752630 is 36257989.

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

It is a super-2 number, since 2×989752630² = 1959220537183833800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989752639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49487622 + ... + 49487641.

It is an arithmetic number, because the mean of its divisors is an integer number (222694344).

Almost surely, 2^989752630 is an apocalyptic number.

989752630 is a deficient number, since it is larger than the sum of its proper divisors (791802122).

989752630 is a wasteful number, since it uses less digits than its factorization.

989752630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98975270.

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 989752630 is about 31460.3342321724. The cubic root of 989752630 is about 996.5724754979.

The spelling of 989752630 in words is "nine hundred eighty-nine million, seven hundred fifty-two thousand, six hundred thirty".