609697051 has 4 divisors (see below), whose sum is σ = 609906472. Its totient is φ = 609487632.

The previous prime is 609697031. The next prime is 609697069. The reversal of 609697051 is 150796906.

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

It is a cyclic number.

It is not a de Polignac number, because 609697051 - 2¹⁹ = 609172763 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 609696989 and 609697007.

It is not an unprimeable number, because it can be changed into a prime (609697031) 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, 100281 + ... + 106186.

It is an arithmetic number, because the mean of its divisors is an integer number (152476618).

Almost surely, 2^609697051 is an apocalyptic number.

609697051 is a deficient number, since it is larger than the sum of its proper divisors (209421).

609697051 is a wasteful number, since it uses less digits than its factorization.

609697051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209420.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 609697051 is about 24692.0442855589. The cubic root of 609697051 is about 847.9521873444.

The spelling of 609697051 in words is "six hundred nine million, six hundred ninety-seven thousand, fifty-one".