738437985 has 32 divisors (see below), whose sum is σ = 1331285760. Its totient is φ = 388281600.

The previous prime is 738437981. The next prime is 738437989. The reversal of 738437985 is 589734837.

It is an interprime number because it is at equal distance from previous prime (738437981) and next prime (738437989).

It is not a de Polignac number, because 738437985 - 2² = 738437981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (738437981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28936 + ... + 48105.

It is an arithmetic number, because the mean of its divisors is an integer number (41602680).

Almost surely, 2^738437985 is an apocalyptic number.

It is an amenable number.

738437985 is a deficient number, since it is larger than the sum of its proper divisors (592847775).

738437985 is a wasteful number, since it uses less digits than its factorization.

738437985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77126 (or 77120 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The square root of 738437985 is about 27174.2154440565. The cubic root of 738437985 is about 903.8673028298.

It can be divided in two parts, 7384 and 37985, that added together give a square (45369 = 213²).

The spelling of 738437985 in words is "seven hundred thirty-eight million, four hundred thirty-seven thousand, nine hundred eighty-five".