731604401 has 16 divisors (see below), whose sum is σ = 881808768. Its totient is φ = 598752000.

The previous prime is 731604383. The next prime is 731604407. The reversal of 731604401 is 104406137.

It is not a de Polignac number, because 731604401 - 2¹⁰ = 731603377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (731604407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80750 + ... + 89351.

It is an arithmetic number, because the mean of its divisors is an integer number (55113048).

Almost surely, 2^731604401 is an apocalyptic number.

It is an amenable number.

731604401 is a deficient number, since it is larger than the sum of its proper divisors (150204367).

731604401 is a wasteful number, since it uses less digits than its factorization.

731604401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170152.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 731604401 is about 27048.1866490159. The cubic root of 731604401 is about 901.0704961629.

The spelling of 731604401 in words is "seven hundred thirty-one million, six hundred four thousand, four hundred one".