906490469 has 4 divisors (see below), whose sum is σ = 907900896. Its totient is φ = 905080044.

The previous prime is 906490451. The next prime is 906490471. The reversal of 906490469 is 964094609.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 964094609 = 12097 ⋅79697.

It is a cyclic number.

It is not a de Polignac number, because 906490469 - 2⁸ = 906490213 is a prime.

It is a super-2 number, since 2×906490469² = 1643449940775679922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (906490489) 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, 704249 + ... + 705534.

It is an arithmetic number, because the mean of its divisors is an integer number (226975224).

Almost surely, 2^906490469 is an apocalyptic number.

It is an amenable number.

906490469 is a deficient number, since it is larger than the sum of its proper divisors (1410427).

906490469 is a wasteful number, since it uses less digits than its factorization.

906490469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410426.

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 906490469 is about 30107.9801547696. The cubic root of 906490469 is about 967.8047457677.

The spelling of 906490469 in words is "nine hundred six million, four hundred ninety thousand, four hundred sixty-nine".