906396621 has 32 divisors (see below), whose sum is σ = 1332831360. Its totient is φ = 544492800.

The previous prime is 906396611. The next prime is 906396629. The reversal of 906396621 is 126693609.

It is not a de Polignac number, because 906396621 - 2⁹ = 906396109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (906396629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 329311 + ... + 332051.

It is an arithmetic number, because the mean of its divisors is an integer number (41650980).

Almost surely, 2^906396621 is an apocalyptic number.

It is an amenable number.

906396621 is a deficient number, since it is larger than the sum of its proper divisors (426434739).

906396621 is a wasteful number, since it uses less digits than its factorization.

906396621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2957.

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 906396621 is about 30106.4215907504. The cubic root of 906396621 is about 967.7713460143.

The spelling of 906396621 in words is "nine hundred six million, three hundred ninety-six thousand, six hundred twenty-one".