738386881 has 2 divisors, whose sum is σ = 738386882. Its totient is φ = 738386880.

The previous prime is 738386867. The next prime is 738386899. The reversal of 738386881 is 188683837.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 455609025 + 282777856 = 21345^2 + 16816^2 .

It is a cyclic number.

It is not a de Polignac number, because 738386881 - 2¹¹ = 738384833 is a prime.

It is a super-2 number, since 2×738386881² = 1090430372065816322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (738386801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 369193440 + 369193441.

It is an arithmetic number, because the mean of its divisors is an integer number (369193441).

Almost surely, 2^738386881 is an apocalyptic number.

It is an amenable number.

738386881 is a deficient number, since it is larger than the sum of its proper divisors (1).

738386881 is an equidigital number, since it uses as much as digits as its factorization.

738386881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1548288, while the sum is 52.

The square root of 738386881 is about 27173.2751246514. The cubic root of 738386881 is about 903.8464514736.

The spelling of 738386881 in words is "seven hundred thirty-eight million, three hundred eighty-six thousand, eight hundred eighty-one".