3212785998 has 64 divisors (see below), whose sum is σ = 7569162240. Its totient is φ = 1008352800.

The previous prime is 3212785969. The next prime is 3212785999. The reversal of 3212785998 is 8995872123.

3212785998 is a `hidden beast` number, since 3 + 21 + 27 + 8 + 599 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3212785999) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36003 + ... + 87873.

It is an arithmetic number, because the mean of its divisors is an integer number (118268160).

Almost surely, 2^3212785998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3212785998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3784581120).

3212785998 is an abundant number, since it is smaller than the sum of its proper divisors (4356376242).

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

3212785998 is a wasteful number, since it uses less digits than its factorization.

3212785998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51950 (or 51944 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 3212785998 is about 56681.4431538224. The cubic root of 3212785998 is about 1475.5726586899.

The spelling of 3212785998 in words is "three billion, two hundred twelve million, seven hundred eighty-five thousand, nine hundred ninety-eight".