1009173498 has 8 divisors (see below), whose sum is σ = 2018347008. Its totient is φ = 336391164.

The previous prime is 1009173491. The next prime is 1009173509. The reversal of 1009173498 is 8943719001.

It is a happy number.

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

1009173498 is an admirable number.

It is a super-2 number, since 2×1009173498² = 2036862298131112008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1009173491) 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 3 ways as a sum of consecutive naturals, for example, 84097786 + ... + 84097797.

It is an arithmetic number, because the mean of its divisors is an integer number (252293376).

Almost surely, 2^1009173498 is an apocalyptic number.

1009173498 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1009173498 is a wasteful number, since it uses less digits than its factorization.

1009173498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168195588.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 1009173498 is about 31767.4912135032. The cubic root of 1009173498 is about 1003.0485296895.

The spelling of 1009173498 in words is "one billion, nine million, one hundred seventy-three thousand, four hundred ninety-eight".