609430973 has 4 divisors (see below), whose sum is σ = 610006428. Its totient is φ = 608855520.

The previous prime is 609430961. The next prime is 609430993. The reversal of 609430973 is 379034906.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 478603129 + 130827844 = 21877^2 + 11438^2 .

It is a cyclic number.

It is not a de Polignac number, because 609430973 - 2⁴ = 609430957 is a prime.

It is a super-2 number, since 2×609430973² = 742812221703453458, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 609430973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609430993) 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, 286136 + ... + 288257.

It is an arithmetic number, because the mean of its divisors is an integer number (152501607).

Almost surely, 2^609430973 is an apocalyptic number.

It is an amenable number.

609430973 is a deficient number, since it is larger than the sum of its proper divisors (575455).

609430973 is a wasteful number, since it uses less digits than its factorization.

609430973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575454.

The product of its (nonzero) digits is 122472, while the sum is 41.

The square root of 609430973 is about 24686.6557678435. The cubic root of 609430973 is about 847.8288177404.

The spelling of 609430973 in words is "six hundred nine million, four hundred thirty thousand, nine hundred seventy-three".