406050091 has 4 divisors (see below), whose sum is σ = 406761784. Its totient is φ = 405338400.

The previous prime is 406050077. The next prime is 406050097. The reversal of 406050091 is 190050604.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406050091 is a prime.

It is a super-2 number, since 2×406050091² = 329753352802216562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406050097) 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, 354990 + ... + 356131.

It is an arithmetic number, because the mean of its divisors is an integer number (101690446).

Almost surely, 2^406050091 is an apocalyptic number.

406050091 is a deficient number, since it is larger than the sum of its proper divisors (711693).

406050091 is an equidigital number, since it uses as much as digits as its factorization.

406050091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711692.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 406050091 is about 20150.6846285678. The cubic root of 406050091 is about 740.5025141695.

The spelling of 406050091 in words is "four hundred six million, fifty thousand, ninety-one".