612969696 has 144 divisors (see below), whose sum is σ = 1826592768. Its totient is φ = 194745600.

The previous prime is 612969677. The next prime is 612969701. The reversal of 612969696 is 696969216.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a nude number because it is divisible by every one of its digits.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 633405 + ... + 634371.

It is an arithmetic number, because the mean of its divisors is an integer number (12684672).

Almost surely, 2^612969696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612969696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (913296384).

612969696 is an abundant number, since it is smaller than the sum of its proper divisors (1213623072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612969696 is a wasteful number, since it uses less digits than its factorization.

612969696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085 (or 1074 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 54.

The square root of 612969696 is about 24758.2248152003. The cubic root of 612969696 is about 849.4666531865.

The spelling of 612969696 in words is "six hundred twelve million, nine hundred sixty-nine thousand, six hundred ninety-six".