1984872906 has 24 divisors (see below), whose sum is σ = 4487539680. Its totient is φ = 632857896.

The previous prime is 1984872899. The next prime is 1984872913. The reversal of 1984872906 is 6092784891.

1984872906 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1984872899) and next prime (1984872913).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2396776 + ... + 2397603.

It is an arithmetic number, because the mean of its divisors is an integer number (186980820).

Almost surely, 2^1984872906 is an apocalyptic number.

1984872906 is an abundant number, since it is smaller than the sum of its proper divisors (2502666774).

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

1984872906 is a wasteful number, since it uses less digits than its factorization.

1984872906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4794410 (or 4794407 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 1984872906 is about 44551.9124842021. The cubic root of 1984872906 is about 1256.7365168681.

The spelling of 1984872906 in words is "one billion, nine hundred eighty-four million, eight hundred seventy-two thousand, nine hundred six".