738861447 has 4 divisors (see below), whose sum is σ = 985148600. Its totient is φ = 492574296.

The previous prime is 738861437. The next prime is 738861457. The reversal of 738861447 is 744168837.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (738861437) and next prime (738861457).

It is a de Polignac number, because none of the positive numbers 2^k-738861447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 738861396 and 738861405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (738861437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123143572 + ... + 123143577.

It is an arithmetic number, because the mean of its divisors is an integer number (246287150).

Almost surely, 2^738861447 is an apocalyptic number.

738861447 is a deficient number, since it is larger than the sum of its proper divisors (246287153).

738861447 is a wasteful number, since it uses less digits than its factorization.

738861447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246287152.

The product of its digits is 903168, while the sum is 48.

The square root of 738861447 is about 27182.0059414312. The cubic root of 738861447 is about 904.0400459816.

The spelling of 738861447 in words is "seven hundred thirty-eight million, eight hundred sixty-one thousand, four hundred forty-seven".