938649061 has 16 divisors (see below), whose sum is σ = 1117866240. Its totient is φ = 771120000.

The previous prime is 938649059. The next prime is 938649071. The reversal of 938649061 is 160946839.

It is not a de Polignac number, because 938649061 - 2¹ = 938649059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (938649011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10936 + ... + 44686.

It is an arithmetic number, because the mean of its divisors is an integer number (69866640).

Almost surely, 2^938649061 is an apocalyptic number.

It is an amenable number.

938649061 is a deficient number, since it is larger than the sum of its proper divisors (179217179).

938649061 is a wasteful number, since it uses less digits than its factorization.

938649061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33924.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 938649061 is about 30637.3801262445. The cubic root of 938649061 is about 979.1166067477.

The spelling of 938649061 in words is "nine hundred thirty-eight million, six hundred forty-nine thousand, sixty-one".