611656427 has 4 divisors (see below), whose sum is σ = 612519840. Its totient is φ = 610793016.

The previous prime is 611656403. The next prime is 611656459. The reversal of 611656427 is 724656116.

611656427 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.

It is a cyclic number.

It is not a de Polignac number, because 611656427 - 2¹² = 611652331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (611656477) 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, 430643 + ... + 432060.

It is an arithmetic number, because the mean of its divisors is an integer number (153129960).

Almost surely, 2^611656427 is an apocalyptic number.

611656427 is a deficient number, since it is larger than the sum of its proper divisors (863413).

611656427 is an equidigital number, since it uses as much as digits as its factorization.

611656427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863412.

The product of its digits is 60480, while the sum is 38.

The square root of 611656427 is about 24731.6887211529. The cubic root of 611656427 is about 848.8595672372.

The spelling of 611656427 in words is "six hundred eleven million, six hundred fifty-six thousand, four hundred twenty-seven".