738685645 has 16 divisors (see below), whose sum is σ = 906152832. Its totient is φ = 577869760.

The previous prime is 738685637. The next prime is 738685663. The reversal of 738685645 is 546586837.

738685645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 738685645 - 2³ = 738685637 is a prime.

It is a super-3 number, since 3×738685645³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 738685592 and 738685601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77934 + ... + 86896.

It is an arithmetic number, because the mean of its divisors is an integer number (56634552).

Almost surely, 2^738685645 is an apocalyptic number.

It is an amenable number.

738685645 is a deficient number, since it is larger than the sum of its proper divisors (167467187).

738685645 is a wasteful number, since it uses less digits than its factorization.

738685645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9332.

The product of its digits is 4838400, while the sum is 52.

The square root of 738685645 is about 27178.7719553331. The cubic root of 738685645 is about 903.9683389628.

The spelling of 738685645 in words is "seven hundred thirty-eight million, six hundred eighty-five thousand, six hundred forty-five".