474909091 has 2 divisors, whose sum is σ = 474909092. Its totient is φ = 474909090.

The previous prime is 474909049. The next prime is 474909107. The reversal of 474909091 is 190909474.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 474909091 - 2¹⁵ = 474876323 is a prime.

It is not a weakly prime, because it can be changed into another prime (474909011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237454545 + 237454546.

It is an arithmetic number, because the mean of its divisors is an integer number (237454546).

Almost surely, 2^474909091 is an apocalyptic number.

474909091 is a deficient number, since it is larger than the sum of its proper divisors (1).

474909091 is an equidigital number, since it uses as much as digits as its factorization.

474909091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 474909091 is about 21792.4090224096. The cubic root of 474909091 is about 780.1955958084.

The spelling of 474909091 in words is "four hundred seventy-four million, nine hundred nine thousand, ninety-one".