611020623 has 16 divisors (see below), whose sum is σ = 831552480. Its totient is φ = 398945664.

The previous prime is 611020573. The next prime is 611020643. The reversal of 611020623 is 326020116.

It is a happy number.

It is not a de Polignac number, because 611020623 - 2⁸ = 611020367 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 611020623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611020643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94333 + ... + 100601.

It is an arithmetic number, because the mean of its divisors is an integer number (51972030).

Almost surely, 2^611020623 is an apocalyptic number.

611020623 is a deficient number, since it is larger than the sum of its proper divisors (220531857).

611020623 is a wasteful number, since it uses less digits than its factorization.

611020623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6938.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 611020623 is about 24718.8313437347. The cubic root of 611020623 is about 848.5653413736.

Adding to 611020623 its reverse (326020116), we get a palindrome (937040739).

The spelling of 611020623 in words is "six hundred eleven million, twenty thousand, six hundred twenty-three".