917939050 has 36 divisors (see below), whose sum is σ = 1986125670. Its totient is φ = 314721120.

The previous prime is 917939027. The next prime is 917939053. The reversal of 917939050 is 50939719.

It can be written as a sum of positive squares in 3 ways, for example, as 771117361 + 146821689 = 27769^2 + 12117^2 .

It is a super-2 number, since 2×917939050² = 1685224199029805000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 917938988 and 917939006.

It is not an unprimeable number, because it can be changed into a prime (917939053) 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 17 ways as a sum of consecutive naturals, for example, 184885 + ... + 189784.

Almost surely, 2^917939050 is an apocalyptic number.

917939050 is an abundant number, since it is smaller than the sum of its proper divisors (1068186620).

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

917939050 is a wasteful number, since it uses less digits than its factorization.

917939050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374695 (or 374683 counting only the distinct ones).

The product of its (nonzero) digits is 76545, while the sum is 43.

The square root of 917939050 is about 30297.5089735113. The cubic root of 917939050 is about 971.8620307199.

The spelling of 917939050 in words is "nine hundred seventeen million, nine hundred thirty-nine thousand, fifty".