731013427 has 2 divisors, whose sum is σ = 731013428. Its totient is φ = 731013426.

The previous prime is 731013389. The next prime is 731013431. The reversal of 731013427 is 724310137.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 731013427 - 2⁷ = 731013299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 731013395 and 731013404.

It is not a weakly prime, because it can be changed into another prime (731413427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365506713 + 365506714.

It is an arithmetic number, because the mean of its divisors is an integer number (365506714).

Almost surely, 2^731013427 is an apocalyptic number.

731013427 is a deficient number, since it is larger than the sum of its proper divisors (1).

731013427 is an equidigital number, since it uses as much as digits as its factorization.

731013427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 731013427 is about 27037.2599758186. The cubic root of 731013427 is about 900.8278091396.

The spelling of 731013427 in words is "seven hundred thirty-one million, thirteen thousand, four hundred twenty-seven".