474190091 has 2 divisors, whose sum is σ = 474190092. Its totient is φ = 474190090.

The previous prime is 474190069. The next prime is 474190127. The reversal of 474190091 is 190091474.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-474190091 is a prime.

It is not a weakly prime, because it can be changed into another prime (474192091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237095045 + 237095046.

It is an arithmetic number, because the mean of its divisors is an integer number (237095046).

Almost surely, 2^474190091 is an apocalyptic number.

474190091 is a deficient number, since it is larger than the sum of its proper divisors (1).

474190091 is an equidigital number, since it uses as much as digits as its factorization.

474190091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 474190091 is about 21775.9062038759. The cubic root of 474190091 is about 779.8016650010.

The spelling of 474190091 in words is "four hundred seventy-four million, one hundred ninety thousand, ninety-one".