406825207 has 4 divisors (see below), whose sum is σ = 428237080. Its totient is φ = 385413336.

The previous prime is 406825201. The next prime is 406825213. The reversal of 406825207 is 702528604.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (406825201) and next prime (406825213).

It is a cyclic number.

It is not a de Polignac number, because 406825207 - 2¹⁹ = 406300919 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 (406825201) 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, 10705908 + ... + 10705945.

It is an arithmetic number, because the mean of its divisors is an integer number (107059270).

Almost surely, 2^406825207 is an apocalyptic number.

406825207 is a deficient number, since it is larger than the sum of its proper divisors (21411873).

406825207 is a wasteful number, since it uses less digits than its factorization.

406825207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21411872.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 406825207 is about 20169.9084529405. The cubic root of 406825207 is about 740.9734006623.

The spelling of 406825207 in words is "four hundred six million, eight hundred twenty-five thousand, two hundred seven".