612901884 has 96 divisors (see below), whose sum is σ = 1805884416. Its totient is φ = 157639680.

The previous prime is 612901871. The next prime is 612901931. The reversal of 612901884 is 488109216.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23514 + ... + 42174.

It is an arithmetic number, because the mean of its divisors is an integer number (18811296).

Almost surely, 2^612901884 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 612901884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (902942208).

612901884 is an abundant number, since it is smaller than the sum of its proper divisors (1192982532).

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

612901884 is a wasteful number, since it uses less digits than its factorization.

612901884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18715 (or 18713 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 612901884 is about 24756.8552930294. The cubic root of 612901884 is about 849.4353269195.

It can be divided in two parts, 612 and 901884, that added together give a triangular number (902496 = T₁₃₄₃).

The spelling of 612901884 in words is "six hundred twelve million, nine hundred one thousand, eight hundred eighty-four".