1409731 has 2 divisors, whose sum is σ = 1409732. Its totient is φ = 1409730.

The previous prime is 1409717. The next prime is 1409741. The reversal of 1409731 is 1379041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1409731 - 2¹⁷ = 1278659 is a prime.

It is a super-2 number, since 2×1409731² = 3974682984722, which contains 22 as substring.

1409731 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1409696 and 1409705.

It is not a weakly prime, because it can be changed into another prime (1409741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 704865 + 704866.

It is an arithmetic number, because the mean of its divisors is an integer number (704866).

2^1409731 is an apocalyptic number.

1409731 is the 686-th hex number.

1409731 is a deficient number, since it is larger than the sum of its proper divisors (1).

1409731 is an equidigital number, since it uses as much as digits as its factorization.

1409731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 1409731 is about 1187.3209338675. The cubic root of 1409731 is about 112.1274855725.

The spelling of 1409731 in words is "one million, four hundred nine thousand, seven hundred thirty-one".