406725337 has 4 divisors (see below), whose sum is σ = 408413236. Its totient is φ = 405037440.

The previous prime is 406725331. The next prime is 406725367. The reversal of 406725337 is 733527604.

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

It can be written as a sum of positive squares in 2 ways, for example, as 377175241 + 29550096 = 19421^2 + 5436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406725337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 406725296 and 406725305.

It is not an unprimeable number, because it can be changed into a prime (406725331) 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, 843588 + ... + 844069.

It is an arithmetic number, because the mean of its divisors is an integer number (102103309).

Almost surely, 2^406725337 is an apocalyptic number.

It is an amenable number.

406725337 is a deficient number, since it is larger than the sum of its proper divisors (1687899).

406725337 is a wasteful number, since it uses less digits than its factorization.

406725337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687898.

The product of its (nonzero) digits is 105840, while the sum is 37.

The square root of 406725337 is about 20167.4325832516. The cubic root of 406725337 is about 740.9127627696.

The spelling of 406725337 in words is "four hundred six million, seven hundred twenty-five thousand, three hundred thirty-seven".