989757070 has 8 divisors (see below), whose sum is σ = 1781562744. Its totient is φ = 395902824.

The previous prime is 989757059. The next prime is 989757073. The reversal of 989757070 is 70757989.

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

It is a super-2 number, since 2×989757070² = 1959238115229969800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 989756999 and 989757017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989757073) 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, 49487844 + ... + 49487863.

It is an arithmetic number, because the mean of its divisors is an integer number (222695343).

Almost surely, 2^989757070 is an apocalyptic number.

989757070 is a deficient number, since it is larger than the sum of its proper divisors (791805674).

989757070 is a wasteful number, since it uses less digits than its factorization.

989757070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98975714.

The product of its (nonzero) digits is 1111320, while the sum is 52.

The square root of 989757070 is about 31460.4047971414. The cubic root of 989757070 is about 996.5739656935.

The spelling of 989757070 in words is "nine hundred eighty-nine million, seven hundred fifty-seven thousand, seventy".