611620799 has 4 divisors (see below), whose sum is σ = 613708536. Its totient is φ = 609533064.

The previous prime is 611620783. The next prime is 611620813. The reversal of 611620799 is 997026116.

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 611620799 - 2⁴ = 611620783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611620769) 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, 1043429 + ... + 1044014.

It is an arithmetic number, because the mean of its divisors is an integer number (153427134).

Almost surely, 2^611620799 is an apocalyptic number.

611620799 is a deficient number, since it is larger than the sum of its proper divisors (2087737).

611620799 is a wasteful number, since it uses less digits than its factorization.

611620799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087736.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 611620799 is about 24730.9684201812. The cubic root of 611620799 is about 848.8430853505.

The spelling of 611620799 in words is "six hundred eleven million, six hundred twenty thousand, seven hundred ninety-nine".