906669469 has 2 divisors, whose sum is σ = 906669470. Its totient is φ = 906669468.

The previous prime is 906669443. The next prime is 906669481. The reversal of 906669469 is 964966609.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 621903844 + 284765625 = 24938^2 + 16875^2 .

It is a cyclic number.

It is not a de Polignac number, because 906669469 - 2²³ = 898280861 is a prime.

It is a super-2 number, since 2×906669469² = 1644099052033483922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (906669409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 453334734 + 453334735.

It is an arithmetic number, because the mean of its divisors is an integer number (453334735).

Almost surely, 2^906669469 is an apocalyptic number.

It is an amenable number.

906669469 is a deficient number, since it is larger than the sum of its proper divisors (1).

906669469 is an equidigital number, since it uses as much as digits as its factorization.

906669469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3779136, while the sum is 55.

The square root of 906669469 is about 30110.9526418544. The cubic root of 906669469 is about 967.8684440466.

The spelling of 906669469 in words is "nine hundred six million, six hundred sixty-nine thousand, four hundred sixty-nine".