906407 has 4 divisors (see below), whose sum is σ = 945840. Its totient is φ = 866976.

The previous prime is 906403. The next prime is 906421. The reversal of 906407 is 704609.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704609 = 479 ⋅1471.

It is a cyclic number.

It is not a de Polignac number, because 906407 - 2² = 906403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (906403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19682 + ... + 19727.

It is an arithmetic number, because the mean of its divisors is an integer number (236460).

2⁹⁰⁶⁴⁰⁷ is an apocalyptic number.

906407 is a deficient number, since it is larger than the sum of its proper divisors (39433).

906407 is a wasteful number, since it uses less digits than its factorization.

906407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39432.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 906407 is about 952.0540951017. The cubic root of 906407 is about 96.7775039931. Note that the first 3 decimals are identical.

The spelling of 906407 in words is "nine hundred six thousand, four hundred seven".