906463021 has 4 divisors (see below), whose sum is σ = 907090912. Its totient is φ = 905835132.

The previous prime is 906462979. The next prime is 906463031. The reversal of 906463021 is 120364609.

906463021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 906463021 - 2²⁹ = 369592109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (906463031) 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, 311775 + ... + 314668.

It is an arithmetic number, because the mean of its divisors is an integer number (226772728).

Almost surely, 2^906463021 is an apocalyptic number.

It is an amenable number.

906463021 is a deficient number, since it is larger than the sum of its proper divisors (627891).

906463021 is a wasteful number, since it uses less digits than its factorization.

906463021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627890.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 906463021 is about 30107.5243253244. The cubic root of 906463021 is about 967.7949774823.

The spelling of 906463021 in words is "nine hundred six million, four hundred sixty-three thousand, twenty-one".