1006729406 has 4 divisors (see below), whose sum is σ = 1510094112. Its totient is φ = 503364702.

The previous prime is 1006729397. The next prime is 1006729417. The reversal of 1006729406 is 6049276001.

1006729406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6049276001 = 3623 ⋅1669687.

It is a super-2 number, since 2×1006729406² = 2027008193810225672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251682350 + ... + 251682353.

It is an arithmetic number, because the mean of its divisors is an integer number (377523528).

Almost surely, 2^1006729406 is an apocalyptic number.

1006729406 is a deficient number, since it is larger than the sum of its proper divisors (503364706).

1006729406 is an equidigital number, since it uses as much as digits as its factorization.

1006729406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503364705.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 1006729406 is about 31728.9994484541. Note that the first 3 decimals coincide. The cubic root of 1006729406 is about 1002.2381224044.

Adding to 1006729406 its sum of digits (35), we get a square (1006729441 = 31729²).

The spelling of 1006729406 in words is "one billion, six million, seven hundred twenty-nine thousand, four hundred six".