608226921 has 16 divisors (see below), whose sum is σ = 903968320. Its totient is φ = 404183520.

The previous prime is 608226919. The next prime is 608226989. The reversal of 608226921 is 129622806.

It is a happy number.

608226921 is a `hidden beast` number, since 608 + 2 + 26 + 9 + 21 = 666.

It is not a de Polignac number, because 608226921 - 2¹ = 608226919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (608226911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27535 + ... + 44436.

It is an arithmetic number, because the mean of its divisors is an integer number (56498020).

Almost surely, 2^608226921 is an apocalyptic number.

It is an amenable number.

608226921 is a deficient number, since it is larger than the sum of its proper divisors (295741399).

608226921 is a wasteful number, since it uses less digits than its factorization.

608226921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72293 (or 72287 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 608226921 is about 24662.2570135014. The cubic root of 608226921 is about 847.2700981851.

It can be divided in two parts, 608 and 226921, that added together give a square (227529 = 477²).

The spelling of 608226921 in words is "six hundred eight million, two hundred twenty-six thousand, nine hundred twenty-one".