609747906 has 16 divisors (see below), whose sum is σ = 1220292864. Its totient is φ = 203116464.

The previous prime is 609747893. The next prime is 609747911.

609747906 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23025 + ... + 41828.

It is an arithmetic number, because the mean of its divisors is an integer number (76268304).

Almost surely, 2^609747906 is an apocalyptic number.

609747906 is an abundant number, since it is smaller than the sum of its proper divisors (610544958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

609747906 is a wasteful number, since it uses less digits than its factorization.

609747906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66425.

The product of its (nonzero) digits is 571536, while the sum is 48.

The square root of 609747906 is about 24693.0740492147. The cubic root of 609747906 is about 847.9757626646.

The spelling of 609747906 in words is "six hundred nine million, seven hundred forty-seven thousand, nine hundred six".