738401 has 2 divisors, whose sum is σ = 738402. Its totient is φ = 738400.

The previous prime is 738391. The next prime is 738403. The reversal of 738401 is 104837.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 577600 + 160801 = 760^2 + 401^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-738401 is a prime.

It is a Sophie Germain prime.

Together with 738403, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (738403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 369200 + 369201.

It is an arithmetic number, because the mean of its divisors is an integer number (369201).

2⁷³⁸⁴⁰¹ is an apocalyptic number.

It is an amenable number.

738401 is a deficient number, since it is larger than the sum of its proper divisors (1).

738401 is an equidigital number, since it uses as much as digits as its factorization.

738401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 738401 is about 859.3026242250. The cubic root of 738401 is about 90.3852212377.

The spelling of 738401 in words is "seven hundred thirty-eight thousand, four hundred one".