406731001 has 4 divisors (see below), whose sum is σ = 430656372. Its totient is φ = 382805632.

The previous prime is 406730999. The next prime is 406731019. The reversal of 406731001 is 100137604.

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 337824400 + 68906601 = 18380^2 + 8301^2 .

It is a cyclic number.

It is not a de Polignac number, because 406731001 - 2¹ = 406730999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406731041) 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, 11962660 + ... + 11962693.

It is an arithmetic number, because the mean of its divisors is an integer number (107664093).

Almost surely, 2^406731001 is an apocalyptic number.

It is an amenable number.

406731001 is a deficient number, since it is larger than the sum of its proper divisors (23925371).

406731001 is a wasteful number, since it uses less digits than its factorization.

406731001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23925370.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 406731001 is about 20167.5730071816. The cubic root of 406731001 is about 740.9162020360.

Adding to 406731001 its reverse (100137604), we get a palindrome (506868605).

The spelling of 406731001 in words is "four hundred six million, seven hundred thirty-one thousand, one".